{"title":"ICBM™ for 2-Stroke Engines","description":"\u003cp\u003eEnhance the performance and durability of your 2-stroke engine with Inoue Boring’s precision ICBM™ (Inoue Boring Cylinder Bore Finishing Method) treatment. This process breathes new life into your prized antique motorcycle engine—allowing you to ride hard today and preserve it for tomorrow.\u003c\/p\u003e\n\u003ch2\u003eSupported 2-Stroke Engines\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eKawasaki H2 750SS\u003c\/li\u003e\n\u003cli\u003eKawasaki H2 750SS Mach Ⅳ STD\u003c\/li\u003e\n\u003cli\u003eKawasaki H1 500SS Mach III STD\u003c\/li\u003e\n\u003cli\u003eKawasaki KH400 STD\u003c\/li\u003e\n\u003cli\u003eSUZUKI GT380\u003c\/li\u003e\n\u003cli\u003eAnd more — \u003ca href=\"https:\/\/inoueboring.com\/products\/icbm-cylinder-processing-nickel-silicon-carbide-plating-request-a-quote-before-ordering\"\u003econtact us for your model\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","products":[{"product_id":"piston-kit-kawasaki-350ss-φ53-std-wossner-inoue-boring-original-japan-new-ltd","title":"Piston KIT kawasaki 350ss MACH Ⅱ φ53 STD Wossner  for 1-cylinder set  INOUE BORING  Original Japan NEW LTD","description":"\u003cdiv\u003e\n\u003cb\u003eKawasaki 350SS \u003c\/b\u003e\u003cb\u003eMACH Ⅱ Woss\u003c\/b\u003e\u003cb style=\"font-size: 0.875rem;\"\u003ener Piston KIT φ53 STD INOUE BORING ORIGINAL JAPAN NEW  \u003c\/b\u003e\u003cb\u003eLTD for 1-cylinder 1 set.\u003c\/b\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eThis time, Inoue Boring manufactured the piston of the Kawasaki 350SS with forged aluminum, which has less variation in weight than cast aluminum, and manufactured it without changing the design of the stock piston as much as possible.\u003c\/p\u003e\n\u003cp\u003eThis results in less variability in the total weight and meets the needs of owners looking for greater precision.\u003cbr\u003eAll pistons are designed by Inoue Boling, which has been in business for 71 years, and all piston kits are manufactured by German piston manufacturer [Wossner]. The upper part of the piston is laser-engraved with the \"IB\" logo, which is the symbol of our products.\u003cbr\u003eThe sides of the piston are coated with molybdenum to prevent seizure and ensure an initial fit. In addition, the piston is also compatible with our cylinder processing menu \"ICBM Aluminized Sleeve Processing\", and we would appreciate it if you could request processing in combination with our piston kit. The piston size is only STD size φ53. The price is per piston kit.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!----\u003e","brand":"iNOUE BORING","offers":[{"title":"Default Title","offer_id":48820849180885,"sku":"","price":275.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0701\/2502\/7541\/files\/350ss.jpg?v=1722583708"},{"product_id":"kawasaki-h2-original-connecting-rod-kit-inoue-boring-original-japan-top-new","title":"Kawasaki H2 Original Connecting Rod Kit- 1 Cylinder Set- Inoue Boring Original Japan Top NEW","description":"\u003ch2\u003eItem specifics\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003ctd\u003eMachine Type\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eItems Included\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003ctd\u003eManufacturer Part \u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Model\u003c\/td\u003e\n\u003ctd\u003eH2\u003c\/td\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003esteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuperseded Part \u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003ctd\u003eVintage Part\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine Typev\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eKawasaki\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eConnecting Rod Kit\u003c\/td\u003e\n\u003ctd\u003eInterchange Part \u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Warranty\u003c\/td\u003e\n\u003ctd\u003e3 Months\u003c\/td\u003e\n\u003ctd\u003eOE\/OEM Part \u003c\/td\u003e\n\u003ctd\u003eno, N\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry\/Region of Manufacture\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003ePolished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePerformance Part\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eThis Kawasaki H2 Original Connecting Rod Kit is a top-quality product that will ensure your motorcycle's optimal performance.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e It is designed for use with dual sport motorcycles and is made of high-quality steel material. \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eThe kit is compatible with Kawasaki H2 models and is suitable for placement on various parts of the vehicle, including the rear, left, front, front wheel, right, and rear wheel. \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eThe kit is a vintage part and is manufactured in Japan, with universal fitment for Kawasaki H2 models. It comes with a 3-month manufacturer warranty and is a performance part that is suitable for use with other engine parts. \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eThe kit is categorized under \"Other Engine Parts,\" \"Engines \u0026amp; Engine Parts,\" \"Motorcycle \u0026amp; Scooter Parts \u0026amp; Accessories,\" \"Parts \u0026amp; Accessories,\" and \"eBay Motors.\" Get your hands on this top-quality kit today and ensure your motorcycle's optimal performance.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eCompatibility\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"iNOUE BORING","offers":[{"title":"Default Title","offer_id":48899810820309,"sku":"","price":163.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0701\/2502\/7541\/files\/H2cr.jpg?v=1722841009"},{"product_id":"yamaha-rz250r-crankshaft-rebuilt-centered-w-small-end-b-g-inoue-boring-japan","title":"YAMAHA RZ250R Crankshaft Rebuilt Centered W\/ small-end b\/g Inoue Boring Japan","description":"\u003ch1\u003e\n\u003cstrong\u003eRZ250R crankshaft (with small end B\/g). Bearings, connecting rods, washers, and plates are all new!\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/h1\u003e\n\u003cdiv\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch2 class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan lang=\"EN-US\"\u003eItem specifics\u003c\/span\u003e\u003c\/b\u003e\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ctable style=\"width: 100%; height: 234px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 37.6335%; height: 19.5938px;\"\u003eCondition\u003c\/td\u003e\n\u003ctd style=\"width: 22.8665%; height: 19.5938px;\"\u003eNew\u003c\/td\u003e\n\u003ctd style=\"width: 23.6562%; height: 19.5938px;\"\u003eMachine Type\u003c\/td\u003e\n\u003ctd style=\"width: 10.7528%; height: 19.5938px;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 37.6335%; height: 19.5938px;\"\u003eItems Included\u003c\/td\u003e\n\u003ctd style=\"width: 22.8665%; height: 19.5938px;\"\u003eN\/A\u003c\/td\u003e\n\u003ctd style=\"width: 23.6562%; height: 19.5938px;\"\u003eManufacturer Part \u003c\/td\u003e\n\u003ctd style=\"width: 10.7528%; height: 19.5938px;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 37.6335%; height: 19.5938px;\"\u003eCompatible Model\u003c\/td\u003e\n\u003ctd style=\"width: 22.8665%; height: 19.5938px;\"\u003eRZ250R\u003c\/td\u003e\n\u003ctd style=\"width: 23.6562%; height: 19.5938px;\"\u003eMaterial\u003c\/td\u003e\n\u003ctd style=\"width: 10.7528%; height: 19.5938px;\"\u003esteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 37.6335%; height: 19.5938px;\"\u003eSuperseded Part \u003c\/td\u003e\n\u003ctd style=\"width: 22.8665%; height: 19.5938px;\"\u003eN\/A\u003c\/td\u003e\n\u003ctd style=\"width: 23.6562%; height: 19.5938px;\"\u003eVintage Part\u003c\/td\u003e\n\u003ctd style=\"width: 10.7528%; height: 19.5938px;\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 37.6335%; height: 19.5938px;\"\u003eEngine Typev\u003c\/td\u003e\n\u003ctd style=\"width: 22.8665%; height: 19.5938px;\"\u003e2-Stroke\u003c\/td\u003e\n\u003ctd style=\"width: 23.6562%; height: 19.5938px;\"\u003eBrand\u003c\/td\u003e\n\u003ctd style=\"width: 10.7528%; height: 19.5938px;\"\u003eYAMAHA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 37.6335%; height: 19.5938px;\"\u003eType\u003c\/td\u003e\n\u003ctd style=\"width: 22.8665%; height: 19.5938px;\"\u003eCrankshaft\u003c\/td\u003e\n\u003ctd style=\"width: 23.6562%; height: 19.5938px;\"\u003eInterchange Part \u003c\/td\u003e\n\u003ctd style=\"width: 10.7528%; height: 19.5938px;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 37.6335%; height: 19.5938px;\"\u003eManufacturer Warranty\u003c\/td\u003e\n\u003ctd style=\"width: 22.8665%; height: 19.5938px;\"\u003e3 Months\u003c\/td\u003e\n\u003ctd style=\"width: 23.6562%; height: 19.5938px;\"\u003eOE\/OEM Part \u003c\/td\u003e\n\u003ctd style=\"width: 10.7528%; height: 19.5938px;\"\u003eno, N\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 37.6335%; height: 19.5938px;\"\u003eCountry\/Region of Manufacture\u003c\/td\u003e\n\u003ctd style=\"width: 22.8665%; height: 19.5938px;\"\u003eJapan\u003c\/td\u003e\n\u003ctd style=\"width: 23.6562%; height: 19.5938px;\"\u003eFinish\u003c\/td\u003e\n\u003ctd style=\"width: 10.7528%; height: 19.5938px;\"\u003ePolished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 37.6335%; height: 19.5938px;\"\u003ePerformance Part\u003c\/td\u003e\n\u003ctd style=\"width: 22.8665%; height: 19.5938px;\"\u003eYes\u003c\/td\u003e\n\u003ctd style=\"width: 23.6562%; height: 19.5938px;\"\u003eUPC\u003c\/td\u003e\n\u003ctd style=\"width: 10.7528%; height: 19.5938px;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e・This Yamaha RZ250R crankshaft has been rebuilt and centered with small-end bearings, ensuring optimal performance for your motorcycle engine.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e・ Made of high-quality cast iron material, this crankcase is a perfect fit for your Yamaha engine. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e・The polished finish adds to the aesthetic appeal of your bike. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e・This item is perfect for those looking to upgrade their motorcycle engine crankcase. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e・With its precise construction and excellent quality, it is sure to improve the overall performance of your Yamaha RZ250R.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e★ Product Selling Point\u003c\/div\u003e\n\u003cdiv\u003eStock! Pre-centered, rebuilt crankshaft\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003ePlease use a crank with a proactive core!\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eINOUE BORING\u003c\/div\u003e\n\u003c\/div\u003e","brand":"iNOUE BORING","offers":[{"title":"Default Title","offer_id":49910596239573,"sku":"","price":770.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0701\/2502\/7541\/files\/RZ250R4.jpg?v=1729055829"},{"product_id":"kawasaki-h2-750ss-machined-billet-cylinder-aluminized-cylinder-liner-japan-new","title":"Kawasaki H2 750ss Machined Billet Cylinder Aluminized Cylinder liner Japan New","description":"\u003ch2\u003eItem Specifics\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003ctd\u003eMachine Type\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eItems Included\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003ctd\u003eManufacturer Part #\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Model\u003c\/td\u003e\n\u003ctd\u003eH2\u003c\/td\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuperseded Part\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003ctd\u003eVintage Part\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine Type\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eKawasaki\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eCylinder\u003c\/td\u003e\n\u003ctd\u003eInterchange Part #\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Warranty\u003c\/td\u003e\n\u003ctd\u003e3 Months\u003c\/td\u003e\n\u003ctd\u003eOE\/OEM Part #\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry\/Region of Manufacture\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003ePolished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePerformance Part\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cbr\u003e\n\n\u003cp\u003eThank you for visiting Inoue Boring shopify. \u003cstrong\u003eInoue Boring Co., Ltd.\u003c\/strong\u003e Original \u003cstrong\u003eKawasaki H2\u003c\/strong\u003e Machined Aluminum Cylinder \u003cstrong\u003eφ71\u003c\/strong\u003e for Piston.\u003c\/p\u003e\n\u003cp\u003eNote: The inner diameter of the machined aluminum cylinder uses an aluminum-plated cylinder equipped with the world’s only technology, and the intake and exhaust ports are \u003cstrong\u003ebridge ports with pillars\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cbr\u003e\n\n\u003ch3\u003eWhy the H2 Cylinder Needed a Solution\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eThe H2 was well received for its strong acceleration, but the durability of the cylinder was not very good due to the emphasis on performance.\u003c\/li\u003e\n  \u003cli\u003eThe inner diameter of the cylinder was abnormally worn, and mechanical noise was immediately emitted.\u003c\/li\u003e\n  \u003cli\u003eThis had a significant impact on compression, performance, and durability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eBridge Port Design\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBridgeport solves all the problems associated with H2 at once.\u003c\/strong\u003e In order to prevent pistons and piston rings from jumping into the large IN\/EX port, it is a process to attach a pillar.\u003c\/li\u003e\n  \u003cli\u003eThis is the port shape that was actually used in the \u003cstrong\u003eH1R and H2R racer machines\u003c\/strong\u003e of the time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat Is ICBM™ Aluminized Cylinder?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCompared to cast iron sleeves, plated sleeves have \u003cstrong\u003e23 times the hardness\u003c\/strong\u003e of the plating surface.\u003c\/li\u003e\n  \u003cli\u003eSince it is aluminum, it is \u003cstrong\u003elightweight\u003c\/strong\u003e and conducts heat well, so it improves heat dissipation.\u003c\/li\u003e\n  \u003cli\u003eIt does not leave rust marks, so it is recommended for those who do not have many opportunities to ride a motorcycle.\u003c\/li\u003e\n  \u003cli\u003eNowadays, it has become a commonplace technology for new sports bikes, but by using the latest aluminum plated sleeves for \u003cstrong\u003evintage motorcycles\u003c\/strong\u003e, it is possible to improve durability and response comparable to modern motorcycles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor the piston size, please use the standard size \u003cstrong\u003eφ71.0\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003ePlease use the one and only machined cylinder in Japan for your car!\u003c\/p\u003e\n\u003cp\u003eNote: If you would like a different size, we can also make it to order! \u003ca href=\"#shopify-section-template--21459829227733__rich_text_qzpdzx\"\u003ePlease fill out the form below.\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cbr\u003e\n                                                                             \n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eYear\u003c\/td\u003e\n\u003ctd\u003eMake\u003c\/td\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSubmodel\u003c\/td\u003e\n\u003ctd\u003eNotes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1975\u003c\/td\u003e\n\u003ctd\u003eKawasaki\u003c\/td\u003e\n\u003ctd\u003eH2\u003c\/td\u003e\n\u003ctd\u003eMach IV\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1974\u003c\/td\u003e\n\u003ctd\u003eKawasaki\u003c\/td\u003e\n\u003ctd\u003eH2\u003c\/td\u003e\n\u003ctd\u003eMach IV\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1973\u003c\/td\u003e\n\u003ctd\u003eKawasaki\u003c\/td\u003e\n\u003ctd\u003eH2\u003c\/td\u003e\n\u003ctd\u003eMach IV\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1972\u003c\/td\u003e\n\u003ctd\u003eKawasaki\u003c\/td\u003e\n\u003ctd\u003eH2\u003c\/td\u003e\n\u003ctd\u003eMach IV\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cbr\u003e\n                                                                             \n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"faq-section\"\u003e\n  \u003cdetails open\u003e\n    \u003csummary\u003e\u003cstrong\u003e▶ What is an ICBM™ aluminized cylinder?\u003c\/strong\u003e\u003c\/summary\u003e\n    \u003cp\u003eCompared to cast iron sleeves, ICBM aluminized cylinder plated sleeves have 23 times the hardness of the plating surface. Since it is aluminum, it is lightweight and conducts heat well, improving heat dissipation. It does not leave rust marks, making it ideal for vintage motorcycles that are not ridden frequently.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails open\u003e\n    \u003csummary\u003e\u003cstrong\u003e▶ What piston size should I use?\u003c\/strong\u003e\u003c\/summary\u003e\n    \u003cp\u003ePlease use the standard size φ71.0 piston.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails open\u003e\n    \u003csummary\u003e\u003cstrong\u003e▶ Can I order a custom size?\u003c\/strong\u003e\u003c\/summary\u003e\n    \u003cp\u003eYes. If you would like a different size, we can make it to order. \u003ca href=\"#shopify-section-template--21459829227733__rich_text_qzpdzx\"\u003ePlease fill out the form below.\u003c\/a\u003e\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails open\u003e\n    \u003csummary\u003e\u003cstrong\u003e▶ What years and models is this cylinder compatible with?\u003c\/strong\u003e\u003c\/summary\u003e\n    \u003cp\u003eThis cylinder is compatible with Kawasaki H2 Mach IV from 1972 to 1975.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails open\u003e\n    \u003csummary\u003e\u003cstrong\u003e▶ What is the bridge port design?\u003c\/strong\u003e\u003c\/summary\u003e\n    \u003cp\u003eThe bridge port with pillars prevents pistons and piston rings from jumping into the large IN\/EX port. This is the same port shape used in the H1R and H2R racer machines of the time.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003cbr\u003e\n                                                                             \n\u003ch2\u003eLearn More About ICBM™ Technology\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/blogs\/news\/h2-icbm%E2%84%A2%EF%B8%8E\"\u003eH2-ICBM™ — Technology Overview\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/blogs\/news\/h2-cylinders-icbm%C2%AE\"\u003eH2 Cylinders ICBM® — Detailed Specifications\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/blogs\/news\/why-we-built-a-billet-h2-cylinder-and-what-it-means-for-icbm\"\u003eWhy We Built a Billet H2 Cylinder\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/blogs\/news\/h2-icbm-development-story-episode-2\"\u003eH2-ICBM™ Development Story — Episode 2\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/blogs\/news\/en-h2-billet-cylinder-episode-3\"\u003eH2 Billet Cylinder — Episode 3\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/blogs\/icbm%E2%84%A2-blog\/what-is-icbm%E2%84%A2-technology-a-new-future-for-vintage-engines\"\u003eWhat Is ICBM™ Technology? A New Future for Vintage Engines\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cbr\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is an ICBM aluminized cylinder?\",\n      \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Compared to cast iron sleeves, ICBM aluminized cylinder plated sleeves have 23 times the hardness of the plating surface. Since it is aluminum, it is lightweight and conducts heat well, improving heat dissipation. It does not leave rust marks, making it ideal for vintage motorcycles that are not ridden frequently.\" }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What piston size should I use?\",\n      \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Please use the standard size φ71.0 piston.\" }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I order a custom size?\",\n      \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Yes. If you would like a different size, we can make it to order. Please feel free to contact us at https:\/\/inoueboring.com\/pages\/quote\" }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What years and models is this cylinder compatible with?\",\n      \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"This cylinder is compatible with Kawasaki H2 Mach IV from 1972 to 1975.\" }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the bridge port design?\",\n      \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"The bridge port with pillars prevents pistons and piston rings from jumping into the large IN\/EX port. This is the same port shape used in the H1R and H2R racer machines of the time.\" }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"iNOUE BORING","offers":[{"title":"Silver","offer_id":50047284543701,"sku":null,"price":10408.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0701\/2502\/7541\/files\/H2_billet_cyl-3.jpg?v=1761109741"},{"product_id":"kawasaki-h2-750ss-3d-printed-cylinder-kit-aluminized-cylinder-liner-japan-new","title":"Kawasaki H2 750ss 3D Printed Cylinder Kit Aluminized Cylinder liner Japan New","description":"\u003ch2\u003eItem specifics\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003ctd\u003eMachine Type\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eItems Included\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003ctd\u003eManufacturer Part #\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Model\u003c\/td\u003e\n\u003ctd\u003eH2\u003c\/td\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuperseded Part #\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003ctd\u003eVintage Part\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine Typev\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e2-Stroke\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eKawasaki\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eCylinder \u003c\/td\u003e\n\u003ctd\u003eInterchange Part #\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Warranty\u003c\/td\u003e\n\u003ctd\u003e3 Months\u003c\/td\u003e\n\u003ctd\u003eOE\/OEM Part #\u003c\/td\u003e\n\u003ctd\u003eno, N\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry\/Region of Manufacture\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003ePolished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePerformance Part\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv\u003e\n\u003cb\u003e\u003c\/b\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cb\u003e・Thank you for visiting Inoue Boring Shopify.\u003c\/b\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cb\u003e・ Manufactured with Inoue Boring Co., Ltd.'s original Kawasaki H2 3D printer, our ICBM aluminum-plated cylinder is of course used for the inner diameter of the cylinder, and the intake and exhaust ports are bridge ports with pillars. \u003c\/b\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cb\u003e・At the time, the H2 was well received for its strong acceleration, but it is widely known that the durability of the cylinder is not very good due to the emphasis on performance, and the inner diameter of the cylinder is abnormally worn, and the mechanical noise is immediately emitted. \u003c\/b\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cb\u003e・This is not only mechanical noise, but also has a significant impact on compression, performance, and durability. \u003c\/b\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cb\u003e・Bridgeport solves all the problems associated with H2 at once! In order to prevent pistons and piston rings from jumping into the large IN\/EX port, it is a process to attach a pillar. \u003c\/b\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cb\u003e・This is the port shape that was actually used in the H1R and H2R racer machines of the time. \u003c\/b\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cb\u003e・* What is ICBM aluminized cylinder? Compared to cast iron sleeves, plated sleeves have 23 times the hardness of the plating surface. \u003c\/b\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cb\u003e・The side is made of ten-mag material, so it is lightweight and conducts heat well, improves heat dissipation, and does not rust marks, so it is recommended for those who do not have many opportunities to ride a motorcycle. Nowadays, it has become a commonplace technology for new sports bikes, but by using the latest aluminum plated sleeves for old cars, it is possible to improve durability and response that are comparable to new cars. \u003c\/b\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cb\u003e・https:\/\/www.ibg.co.jp\/icbm\/ - ICBM Plated Cylinder - https:\/\/www.ibg.co.jp\/ - Inoue Boring Homepage -\u003c\/b\u003e\u003c\/div\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eYear\u003c\/td\u003e\n\u003ctd\u003eMake\u003c\/td\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSubmodel\u003c\/td\u003e\n\u003ctd\u003eNotes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1975\u003c\/td\u003e\n\u003ctd\u003eKawasaki\u003c\/td\u003e\n\u003ctd\u003eH2\u003c\/td\u003e\n\u003ctd\u003eMach IV\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1974\u003c\/td\u003e\n\u003ctd\u003eKawasaki\u003c\/td\u003e\n\u003ctd\u003eH2\u003c\/td\u003e\n\u003ctd\u003eMach IV\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1973\u003c\/td\u003e\n\u003ctd\u003eKawasaki\u003c\/td\u003e\n\u003ctd\u003eH2\u003c\/td\u003e\n\u003ctd\u003eMach IV\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1972\u003c\/td\u003e\n\u003ctd\u003eKawasaki\u003c\/td\u003e\n\u003ctd\u003eH2\u003c\/td\u003e\n\u003ctd\u003eMach IV\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"iNOUE BORING","offers":[{"title":"Default Title","offer_id":50639985311957,"sku":null,"price":13000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0701\/2502\/7541\/files\/h23d-3.jpg?v=1732085442"},{"product_id":"kawasaki-h2-750ss-mach-iv-std-φ71-aluminum-sleeve-finish-cylinder-processing","title":"Kawasaki H2 750SS Mach Ⅳ STD  φ71.0  Aluminum Sleeve Finish Cylinder Processing","description":"\u003cul\u003e\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eAbout This Service\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThis is a cylinder rebuild service for Kawasaki H2 750SS Mach Ⅳ STD  φ71.0. Upon receipt of your cylinder, we will rebuild it and ship it back to you. Please send us only the cylinder and the corresponding piston, with payment in advance. We will install an aluminum sleeve plated with nickel-silicon-carbide (hardness second only to diamond) and ensure proper piston clearance before returning it to you.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eNever Wears Out. Seizure-Proof. Lightweight.\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRide right away—no break-in required\u003c\/li\u003e\n\u003cli\u003eExceptionally long-lasting\u003c\/li\u003e\n\u003cli\u003eOne-third the weight of cast iron\u003c\/li\u003e\n\u003cli\u003e5× the heat transfer of cast iron\u003c\/li\u003e\n\u003cli\u003eRust-free\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003e\u003cstrong\u003eWhat is ICBM Processing?\u003c\/strong\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\u003cspan\u003eRemove the original cast-iron sleeve.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInstall a precision nickel-silicon-carbide-plated aluminum sleeve.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eRide with a lightweight, ultra-durable cylinder that preserves itself as you go.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003e\u003cspan\u003e\u003cstrong\u003eHow to Order\u003c\/strong\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003col\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\n\u003cspan\u003eClick [Add to Cart] to purchase the machining service only.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eComplete the Quate Request\/Service Form below.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eWithin one business day we’ll confirm schedule by email.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\n\u003cspan\u003ePrint the confirmation PDF and include it when you ship us your cylinders and pistons.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\n\u003cspan\u003eAfter machining, we inspect every component and ship it back to you.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eShipping address: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eInoue Boring Co., Ltd.\u003cbr\u003e〒350-1155 Saitama Prefecture Kawagoe City Shimoakasaka Onohara 671\u003cbr\u003e℡：+81-49-261-5833\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNeed pistons supplied? Request a quote on our Estimate Request page.\u003cbr\u003eProcessing takes ≈ 20 business days.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAll work is completed in our insured, domestic facility, and every component is quality-guaranteed. Ride with confidence—preserve your engine for the next generation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eYear\u003c\/td\u003e\n\u003ctd\u003eMake\u003c\/td\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSubmodel\u003c\/td\u003e\n\u003ctd\u003eNotes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1975\u003c\/td\u003e\n\u003ctd\u003eKawasaki\u003c\/td\u003e\n\u003ctd\u003eH2\u003c\/td\u003e\n\u003ctd\u003eMach IV\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1974\u003c\/td\u003e\n\u003ctd\u003eKawasaki\u003c\/td\u003e\n\u003ctd\u003eH2\u003c\/td\u003e\n\u003ctd\u003eMach IV\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1973\u003c\/td\u003e\n\u003ctd\u003eKawasaki\u003c\/td\u003e\n\u003ctd\u003eH2\u003c\/td\u003e\n\u003ctd\u003eMach IV\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1972\u003c\/td\u003e\n\u003ctd\u003eKawasaki\u003c\/td\u003e\n\u003ctd\u003eH2\u003c\/td\u003e\n\u003ctd\u003eMach IV\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"iNOUE BORING","offers":[{"title":"Default Title","offer_id":50749167861973,"sku":null,"price":2500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0701\/2502\/7541\/files\/H2-icbm.webp?v=1726028452"},{"product_id":"kawasaki-h1-500ss-mach-ⅳ-std-φ61-0-aluminum-sleeve-finish-cylinder-processing","title":"Kawasaki H1 500SS Mach III STD φ60.5\/61.0 mm ICBM Aluminum Sleeve‐Finish Cylinder Processing","description":"\u003ch2\u003e\u003cstrong\u003eNever Wears Out. Seizure-Proof. Lightweight.\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRide right away—no break-in required\u003c\/li\u003e\n\u003cli\u003eExceptionally long-lasting\u003c\/li\u003e\n\u003cli\u003eOne-third the weight of cast iron\u003c\/li\u003e\n\u003cli\u003e5× the heat transfer of cast iron\u003c\/li\u003e\n\u003cli\u003eRust-free\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003ch2 role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eWhat is ICBM Processing?\u003c\/strong\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\u003cspan\u003eRemove the original cast-iron sleeve.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInstall a precision nickel-silicon-carbide-plated aluminum sleeve.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eRide with a lightweight, ultra-durable cylinder that preserves itself as you go.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003e\u003cspan\u003e\u003cstrong\u003eHow to Order\u003c\/strong\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003col\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\n\u003cspan\u003eClick [Add to Cart] to purchase the machining service only.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\n\u003cspan\u003eComplete the Quate Request\u003c\/span\u003e\u003cspan\u003e\/Service Form below.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eWithin one business day we’ll confirm price and schedule by email.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003ePrint the quote PDF and include it when you ship us your parts.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\n\u003cspan\u003eAfter machining, we inspect every component and ship it back to you.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan\u003eNeed pistons supplied? Request a quote on our Estimate Request page.\u003cbr\u003eProcessing takes ≈ 20 business days.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eAll work is completed in our insured, domestic facility, and every component is quality-guaranteed. Ride with confidence—preserve your engine for the next generation.\u003c\/span\u003e\u003c\/div\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eYear\u003c\/td\u003e\n\u003ctd\u003eMake\u003c\/td\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSubmodel\u003c\/td\u003e\n\u003ctd\u003eNotes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1975\u003c\/td\u003e\n\u003ctd\u003eKawasaki\u003c\/td\u003e\n\u003ctd\u003eH2\u003c\/td\u003e\n\u003ctd\u003eMach IV\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1974\u003c\/td\u003e\n\u003ctd\u003eKawasaki\u003c\/td\u003e\n\u003ctd\u003eH2\u003c\/td\u003e\n\u003ctd\u003eMach IV\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1973\u003c\/td\u003e\n\u003ctd\u003eKawasaki\u003c\/td\u003e\n\u003ctd\u003eH2\u003c\/td\u003e\n\u003ctd\u003eMach IV\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1972\u003c\/td\u003e\n\u003ctd\u003eKawasaki\u003c\/td\u003e\n\u003ctd\u003eH2\u003c\/td\u003e\n\u003ctd\u003eMach IV\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"iNOUE BORING","offers":[{"title":"φ60.5","offer_id":51545913524437,"sku":"","price":2500.0,"currency_code":"USD","in_stock":true},{"title":"φ61.0","offer_id":51545913557205,"sku":"","price":2500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0701\/2502\/7541\/files\/2025y06m11d_073329328.jpg?v=1749594888"},{"product_id":"kawasaki-kh400-std-φ57-0-aluminum-sleeve-finish-cylinder-processing","title":"Kawasaki  KH400 STD  φ57.0 mm ICBM Aluminum Sleeve Finish Cylinder Processing","description":"\u003ch2\u003e\u003cstrong\u003eAbout This Service\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThis is a cylinder rebuild service for Kawasaki KH400 STD φ57.0 mm. Upon receipt of your cylinder, we will rebuild it and return it to you. Please send us only the cylinder and the corresponding piston, with payment in advance. We will install an aluminum sleeve plated with nickel-silicon-carbide (hardness second only to diamond) and ensure proper piston clearance before returning it to you.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eNever Wears Out. Seizure-Proof. Lightweight.\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRide right away—no break-in required\u003c\/li\u003e\n\u003cli\u003eExceptionally long-lasting\u003c\/li\u003e\n\u003cli\u003eOne-third the weight of cast iron\u003c\/li\u003e\n\u003cli\u003e5× the heat transfer of cast iron\u003c\/li\u003e\n\u003cli\u003eRust-free\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003e\u003cstrong\u003eWhat is ICBM Processing?\u003c\/strong\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\u003cspan\u003eRemove the original cast-iron sleeve.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInstall a precision nickel-silicon-carbide-plated aluminum sleeve.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eRide with a lightweight, ultra-durable cylinder that preserves itself as you go.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003e\u003cspan\u003e\u003cstrong\u003eHow to Order\u003c\/strong\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003col\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\n\u003cspan\u003eClick [\u003cstrong\u003eAdd to Cart\u003c\/strong\u003e] to purchase the machining service only.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eComplete the  \u003cstrong\u003e[ICBM™ Quote \u0026amp; Service Form\u003c\/strong\u003e] below.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eWithin one business day we’ll confirm schedule by email.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\n\u003cspan\u003ePrint the confirmation PDF and include it when you ship us your parts.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\n\u003cspan\u003eAfter machining, we inspect every component and ship it back to you.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eShipping address: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eInoue Boring Co., Ltd.\u003cbr\u003e〒350-1155 Saitama Prefecture Kawagoe City Shimoakasaka Onohara 671\u003cbr\u003e℡：+81-49-261-5833\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eSell Your Original Cylinders Back to Us\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eUpgraded to ICBM cylinders? Turn your spare cylinder into cash—just e-mail info@ibshop.net (subject: Cylinder Buy-Back) or message us through our standard \u003ca href=\"https:\/\/ibgshop.net\/pages\/contact\"\u003econtact page.\u003c\/a\u003e We’ll reply with a quote and simple shipping instructions.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNeed pistons supplied? Request a quote on our \u003ca href=\"https:\/\/ibgshop.net\/products\/icbm%E2%84%A2-cylinder-processing-nickel-silicon-carbide-plating-request-a-quote-before-ordering\"\u003eEstimate Request page\u003c\/a\u003e.\u003cbr\u003eProcessing takes about 20 business days.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAll work is completed in our insured, domestic facility, and every component is quality-guaranteed. Ride with confidence—preserve your engine for the next generation.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"INOUE BORING","offers":[{"title":"Default Title","offer_id":50857711632597,"sku":null,"price":2500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0701\/2502\/7541\/files\/KH400icbm.jpg?v=1735100640"},{"product_id":"icbm-cylinder-processing-nickel-silicon-carbide-plating-request-a-quote-before-ordering","title":"Custom ICBM Cylinder Processing (Nickel-Silicon Carbide Plating) Free Quote Request","description":"\u003ch2\u003e\u003cstrong\u003eYou can request your custom order for free.\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch2\u003e\u003cstrong\u003eWhat is ICBM™ Processing?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eRemove the original cast-iron sleeve.\u003c\/li\u003e\n\u003cli\u003eInstall a precision nickel-silicon-carbide-plated aluminum sleeve.\u003c\/li\u003e\n\u003cli\u003eReinvent your cylinder as a lightweight, ultra-durable all-aluminum powerhouse.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003e\u003cstrong\u003eHow to Order\u003c\/strong\u003e\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eFill out the quote request form below.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWithin 1 business day, receive an email with your price, delivery date, and a link to your personal order page.\u003c\/li\u003e\n\u003cli\u003ePrint and include the quoted PDF when you ship us your parts.\u003c\/li\u003e\n\u003cli\u003eAfter ICBM™ processing, we thoroughly inspect and return your components.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cem\u003eAll work is completed in our insured, domestic facility, and every component is quality-guaranteed. Ride with confidence—preserve your engine for the next generation.\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGet a quote:\u003c\/strong\u003e\u003cbr\u003e\u003ca aria-label=\"Request a quote for ICBM cylinder services\" rel=\"noopener noreferrer\" class=\"cta-button-quote\" href=\"https:\/\/inoueboring.com\/pages\/quote\" target=\"_blank\"\u003e Get a Quote \u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"iNOUE BORING","offers":[{"title":"Default Title","offer_id":51524522180821,"sku":"","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0701\/2502\/7541\/files\/2025y06m11d_071813028.jpg?v=1749594090"},{"product_id":"crank-center-labyrinth-seal-for-kawasaki-h2-750ss-labyri-inoue-boring","title":"Crank Center Labyrinth Seal for Kawasaki H2 750SS – LABYRI -Inoue Boring","description":"\u003cp data-end=\"495\" data-start=\"229\"\u003eThis is a \u003cstrong data-end=\"270\" data-start=\"239\"\u003ecrank center labyrinth seal\u003c\/strong\u003e specifically designed for the \u003cstrong data-end=\"322\" data-start=\"301\"\u003eKawasaki H2 750SS\u003c\/strong\u003e.\u003cbr data-end=\"326\" data-start=\"323\"\u003eManufactured and precision-machined by \u003cstrong data-end=\"391\" data-start=\"365\"\u003eInoue Boring \u003c\/strong\u003e, this seal offers outstanding durability and airtightness, ideal for high-performance 2-stroke engines.\u003c\/p\u003e\n\u003cul data-end=\"763\" data-start=\"497\"\u003e\n\u003cli data-end=\"539\" data-start=\"497\"\u003e\n\u003cp data-end=\"539\" data-start=\"499\"\u003e Compatible Model: Kawasaki H2 750SS\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"583\" data-start=\"540\"\u003e\n\u003cp data-end=\"583\" data-start=\"542\"\u003e Type: Center Labyrinth Seal (LABYRI)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"625\" data-start=\"584\"\u003e\n\u003cp data-end=\"625\" data-start=\"586\"\u003eManufacturer: Inoue Boring (Japan)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"689\" data-start=\"626\"\u003e\n\u003cp data-end=\"689\" data-start=\"628\"\u003e High-precision machining for optimal sealing performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"763\" data-start=\"690\"\u003e\n\u003cp data-end=\"763\" data-start=\"692\"\u003e Made in Japan – trusted by vintage motorcycle restorers and tuners\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"870\" data-start=\"765\"\u003eEnsure proper crankcase pressure management and long engine life with this high-quality replacement part.\u003c\/p\u003e\n\u003cp data-end=\"252\" data-start=\"130\"\u003eThe \u003cstrong data-end=\"216\" data-start=\"134\"\u003ebiggest weakness of 2-stroke engines — center seal failure — is finally solved\u003c\/strong\u003e with the \u003cstrong data-end=\"251\" data-start=\"226\"\u003eLABYRI labyrinth seal\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-end=\"391\" data-start=\"254\"\u003eWith LABYRI, \u003cstrong data-end=\"310\" data-start=\"267\"\u003eyou no longer need to fear seal blowout\u003c\/strong\u003e.\u003cbr data-end=\"314\" data-start=\"311\"\u003eThis advanced design eliminates pressure loss and energy leakage, delivering:\u003c\/p\u003e\n\u003cul data-end=\"493\" data-start=\"392\"\u003e\n\u003cli data-end=\"425\" data-start=\"392\"\u003e\n\u003cp data-end=\"425\" data-start=\"394\"\u003e\u003cstrong data-end=\"425\" data-start=\"396\"\u003eSharper throttle response\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"467\" data-start=\"426\"\u003e\n\u003cp data-end=\"467\" data-start=\"428\"\u003e\u003cstrong data-end=\"467\" data-start=\"431\"\u003eSmooth, resistance-free rotation\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"493\" data-start=\"468\"\u003e\n\u003cp data-end=\"493\" data-start=\"470\"\u003e\u003cstrong data-end=\"493\" data-start=\"473\"\u003eZero energy loss\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"631\" data-start=\"495\"\u003eExperience a dramatic improvement in pickup and engine behavior, all thanks to a precision-engineered solution trusted by professionals.\u003c\/p\u003e\n\u003cp data-end=\"275\" data-start=\"125\"\u003eThis is our \u003cstrong data-end=\"176\" data-start=\"137\"\u003efully original, proprietary product\u003c\/strong\u003e —\u003cbr data-end=\"181\" data-start=\"178\"\u003ea \u003cstrong data-end=\"239\" data-start=\"183\"\u003enon-contact, metal labyrinth-style crank center seal\u003c\/strong\u003e:\u003cbr data-end=\"243\" data-start=\"240\"\u003e\u003cstrong data-end=\"254\" data-start=\"243\"\u003eLABYRI\u003c\/strong\u003e by \u003cstrong data-end=\"274\" data-start=\"258\"\u003eINOUE BORING\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-end=\"441\" data-start=\"277\"\u003eUnlike conventional contact-type seals, \u003cstrong data-end=\"342\" data-start=\"317\"\u003eLABYRI is non-wearing\u003c\/strong\u003e.\u003cbr data-end=\"346\" data-start=\"343\"\u003eThanks to its precision-engineered \u003cstrong data-end=\"404\" data-start=\"381\"\u003elabyrinth structure\u003c\/strong\u003e, it eliminates friction and ensures:\u003c\/p\u003e\n\u003cul data-end=\"593\" data-start=\"442\"\u003e\n\u003cli data-end=\"494\" data-start=\"442\"\u003e\n\u003cp data-end=\"494\" data-start=\"444\"\u003e\u003cstrong data-end=\"470\" data-start=\"447\"\u003eZero wear over time\u003c\/strong\u003e — truly built to last\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"544\" data-start=\"495\"\u003e\n\u003cp data-end=\"544\" data-start=\"497\"\u003e\u003cstrong data-end=\"519\" data-start=\"499\"\u003eZero energy loss\u003c\/strong\u003e — no friction, no drag\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"593\" data-start=\"545\"\u003e\n\u003cp data-end=\"593\" data-start=\"547\"\u003e\u003cstrong data-end=\"593\" data-start=\"550\"\u003eSmooth, resistance-free crank operation\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"780\" data-start=\"595\"\u003eBecause it’s a non-contact metal seal, LABYRI not only improves engine responsiveness, but also delivers \u003cstrong data-end=\"731\" data-start=\"700\"\u003eeternal sealing performance\u003c\/strong\u003e — a revolutionary solution for 2-stroke engines.\u003c\/p\u003e\n\u003cp data-end=\"846\" data-start=\"782\"\u003e\u003cstrong data-end=\"846\" data-start=\"782\"\u003eProudly developed and manufactured in Japan by INOUE BORING.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3 data-end=\"125\" data-start=\"93\"\u003e🔧 Key Features \u0026amp; Advantages\u003c\/h3\u003e\n\u003cul data-end=\"878\" data-start=\"127\"\u003e\n\u003cli data-end=\"221\" data-start=\"127\"\u003e\n\u003cp data-end=\"221\" data-start=\"129\"\u003e\u003cstrong data-end=\"159\" data-start=\"131\"\u003eNo modification required\u003c\/strong\u003e — fits directly onto the stock crankshaft without machining\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"310\" data-start=\"222\"\u003e\n\u003cp data-end=\"310\" data-start=\"224\"\u003e\u003cstrong data-end=\"256\" data-start=\"227\"\u003eCrisp, defined appearance\u003c\/strong\u003e — adds a sharp, functional aesthetic to your engine\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"401\" data-start=\"311\"\u003e\n\u003cp data-end=\"401\" data-start=\"313\"\u003e\u003cstrong data-end=\"361\" data-start=\"317\"\u003eAnodized finish for corrosion resistance\u003c\/strong\u003e — built to withstand harsh conditions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"489\" data-start=\"402\"\u003e\n\u003cp data-end=\"489\" data-start=\"404\"\u003e\u003cstrong data-end=\"426\" data-start=\"407\"\u003eOEM-like design\u003c\/strong\u003e — faithfully follows original shape for seamless integration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"613\" data-start=\"490\"\u003e\n\u003cp data-end=\"613\" data-start=\"492\"\u003e\u003cstrong data-end=\"519\" data-start=\"495\"\u003ePrecision inner bore\u003c\/strong\u003e — anodizing is intentionally omitted on the inner diameter to preserve dimensional accuracy\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"684\" data-start=\"614\"\u003e\n\u003cp data-end=\"684\" data-start=\"616\"\u003e\u003cstrong data-end=\"636\" data-start=\"619\"\u003eZero friction\u003c\/strong\u003e — non-contact design means no rotational drag\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"776\" data-start=\"685\"\u003e\n\u003cp data-end=\"776\" data-start=\"687\"\u003e\u003cstrong data-end=\"718\" data-start=\"690\"\u003eFully metal construction\u003c\/strong\u003e — unlike rubber seals, this will never degrade with age\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"883\" data-start=\"880\"\u003e\n\u003cp data-end=\"974\" data-start=\"885\"\u003eManufactured by \u003cstrong data-end=\"919\" data-start=\"903\"\u003eINOUE BORING\u003c\/strong\u003e — Trusted by performance engine builders across Japan.\u003c\/p\u003e","brand":"iNOUE BORING","offers":[{"title":"Default Title","offer_id":51626644111573,"sku":"3","price":409.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0701\/2502\/7541\/files\/750ss-labili4_30329b24-9520-41ea-b5f7-2552310f2607.jpg?v=1750835782"},{"product_id":"kawasaki-h1-500ss-crank-center-labyrinth-seal-labyri","title":"Kawasaki H1 500SS Crank Center Labyrinth Seal LABYRI","description":"\u003ch2\u003eItem Specifics\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003ctd\u003eMachine Type\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eItems Included\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003ctd\u003eManufacturer Part #\u003c\/td\u003e\n\u003ctd\u003eLABYRI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Model\u003c\/td\u003e\n\u003ctd\u003eH1 500SS\u003c\/td\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAluminum (Anodized)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuperseded Part\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003ctd\u003eVintage Part\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine Type\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eKawasaki\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eCrank Center Labyrinth Seal\u003c\/td\u003e\n\u003ctd\u003eInterchange Part #\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Warranty\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003ctd\u003eOE\/OEM Part #\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry\/Region of Manufacture\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eAnodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePerformance Part\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThis is a \u003cstrong\u003ecrank center labyrinth seal\u003c\/strong\u003e specifically designed for the \u003cstrong\u003eKawasaki H1 500SS\u003c\/strong\u003e.\u003cbr\u003eManufactured and precision-machined by \u003cstrong\u003eInoue Boring\u003c\/strong\u003e, this seal offers outstanding durability and airtightness, ideal for high-performance 2-stroke engines.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCompatible Model: Kawasaki H1 500SS\u003c\/li\u003e\n\u003cli\u003eType: Center Labyrinth Seal (LABYRI)\u003c\/li\u003e\n\u003cli\u003eManufacturer: Inoue Boring (Japan)\u003c\/li\u003e\n\u003cli\u003eHigh-precision machining for optimal sealing performance\u003c\/li\u003e\n\u003cli\u003eMade in Japan – trusted by vintage motorcycle restorers and tuners\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEnsure proper crankcase pressure management and long engine life with this high-quality replacement part.\u003c\/p\u003e\n\u003ch3\u003eThe Biggest Weakness of 2-Stroke Engines — Solved\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003ebiggest weakness of 2-stroke engines — center seal failure — is finally solved\u003c\/strong\u003e with the \u003cstrong\u003eLABYRI labyrinth seal\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWith LABYRI, \u003cstrong\u003eyou no longer need to fear seal blowout\u003c\/strong\u003e.\u003cbr\u003eThis advanced design eliminates pressure loss and energy leakage, delivering:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSharper throttle response\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSmooth, resistance-free rotation\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eZero energy loss\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eExperience a dramatic improvement in pickup and engine behavior, all thanks to a precision-engineered solution trusted by professionals.\u003c\/p\u003e\n\u003ch3\u003eLABYRI — Fully Original Proprietary Design\u003c\/h3\u003e\n\u003cp\u003eThis is our \u003cstrong\u003efully original, proprietary product\u003c\/strong\u003e —\u003cbr\u003ea \u003cstrong\u003enon-contact, metal labyrinth-style crank center seal\u003c\/strong\u003e:\u003cbr\u003e\u003cstrong\u003eLABYRI\u003c\/strong\u003e by \u003cstrong\u003eINOUE BORING\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eUnlike conventional contact-type seals, \u003cstrong\u003eLABYRI is non-wearing\u003c\/strong\u003e.\u003cbr\u003eThanks to its precision-engineered \u003cstrong\u003elabyrinth structure\u003c\/strong\u003e, it eliminates friction and ensures:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eZero wear over time\u003c\/strong\u003e — truly built to last\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZero energy loss\u003c\/strong\u003e — no friction, no drag\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSmooth, resistance-free crank operation\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBecause it’s a non-contact metal seal, LABYRI not only improves engine responsiveness, but also delivers \u003cstrong\u003eeternal sealing performance\u003c\/strong\u003e — a revolutionary solution for 2-stroke engines.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProudly developed and manufactured in Japan by INOUE BORING.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Advantages\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo modification required\u003c\/strong\u003e — fits directly onto the stock crankshaft without machining\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrisp, defined appearance\u003c\/strong\u003e — adds a sharp, functional aesthetic to your engine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnodized finish for corrosion resistance\u003c\/strong\u003e — built to withstand harsh conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM-like design\u003c\/strong\u003e — faithfully follows original shape for seamless integration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision inner bore\u003c\/strong\u003e — anodizing is intentionally omitted on the inner diameter to preserve dimensional accuracy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZero friction\u003c\/strong\u003e — non-contact design means no rotational drag\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully metal construction\u003c\/strong\u003e — unlike rubber seals, this will never degrade with age\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eManufactured by \u003cstrong\u003eINOUE BORING\u003c\/strong\u003e — Trusted by performance engine builders across Japan.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eYear\u003c\/td\u003e\n\u003ctd\u003eMake\u003c\/td\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSubmodel\u003c\/td\u003e\n\u003ctd\u003eNotes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eall model years\u003c\/td\u003e\n\u003ctd\u003eKawasaki\u003c\/td\u003e\n\u003ctd\u003eH1\u003c\/td\u003e\n\u003ctd\u003e500SS\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"faq-section\"\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003e▶ What is a labyrinth seal and how does it differ from a conventional seal?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eA labyrinth seal is a non-contact, metal-to-metal sealing mechanism that uses a precision-engineered maze-like structure to prevent gas leakage without physical contact. Unlike conventional rubber contact seals, LABYRI never wears out, generates zero friction, and delivers permanent sealing performance.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003e▶ Does LABYRI require any modification to the crankshaft?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eNo modification is required. LABYRI fits directly onto the stock Kawasaki H1 500SS crankshaft without any machining or alteration.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003e▶ What performance improvements can I expect?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eBy eliminating crankcase pressure loss and energy leakage, LABYRI delivers sharper throttle response, smoother resistance-free rotation, and zero energy loss — resulting in a dramatic improvement in pickup and overall engine behavior.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003e▶ Why is the inner bore not anodized?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eAnodizing is intentionally omitted on the inner diameter to preserve dimensional accuracy and ensure a precise fit on the crankshaft. The outer surfaces are fully anodized for corrosion resistance.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003e▶ Can I order for a different model or custom specification?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003e\u003ca href=\"#shopify-section-template--21459829227733__rich_text_qzpdzx\"\u003ePlease fill out the form below.\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eLearn More About iNOUE BORING Technology\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/icbm%E2%84%A2-blog\/what-is-icbm%E2%84%A2-technology-a-new-future-for-vintage-engines\"\u003eWhat Is ICBM™ Technology? A New Future for Vintage Engines\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/news\/h2-cylinders-icbm%C2%AE\"\u003eH2 Cylinders ICBM® — Detailed Specifications\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/kawasaki-h2-750ss-machined-billet-cylinder-aluminized-cylinder-liner-japan-new\"\u003eKawasaki H2 750SS Machined Billet Cylinder — View Product\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/cylinder-head-kawasaki-h1-500ss-mach-%E2%85%B2-machined-billet-inoue-boring-japan-new\"\u003eKawasaki H1 500SS Mach III Machined Billet Cylinder Head — View Product\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is a labyrinth seal and how does it differ from a conventional seal?\",\n      \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"A labyrinth seal is a non-contact, metal-to-metal sealing mechanism that uses a precision-engineered maze-like structure to prevent gas leakage without physical contact. Unlike conventional rubber contact seals, LABYRI never wears out, generates zero friction, and delivers permanent sealing performance.\" }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Does LABYRI require any modification to the crankshaft?\",\n      \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"No modification is required. LABYRI fits directly onto the stock Kawasaki H1 500SS crankshaft without any machining or alteration.\" }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What performance improvements can I expect?\",\n      \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"By eliminating crankcase pressure loss and energy leakage, LABYRI delivers sharper throttle response, smoother resistance-free rotation, and zero energy loss — resulting in a dramatic improvement in pickup and overall engine behavior.\" }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Why is the inner bore not anodized?\",\n      \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Anodizing is intentionally omitted on the inner diameter to preserve dimensional accuracy and ensure a precise fit on the crankshaft. The outer surfaces are fully anodized for corrosion resistance.\" }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I order for a different model or custom specification?\",\n      \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Please fill out the form on the product page for inquiries about other models or custom specifications.\" }\n    }\n  ]\n}\n\u003c\/script\u003e\u003c\/p\u003e","brand":"iNOUE BORING","offers":[{"title":"Default Title","offer_id":51626647290069,"sku":null,"price":409.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0701\/2502\/7541\/files\/Kawasaki_H1_500SS_LABYRI_crank_center_labyrinth_seal_iNOUE_BORING_Japan.jpg?v=1777184715"},{"product_id":"crank-center-labyrinth-seal-for-kawasaki-kh-series-kh250-kh350-kh400-4b-g-type-labyri-by-inoue-boring","title":"Crank Center Labyrinth Seal for Kawasaki KH Series (KH250\/KH350\/KH400) ,350SS– 4B\/G Type | LABYRI by INOUE BORING","description":"\u003cp data-end=\"245\" data-start=\"116\"\u003eThe \u003cstrong data-end=\"208\" data-start=\"120\"\u003ebiggest weakness of 2-stroke engines — center seal failure — has finally been solved\u003c\/strong\u003e with the \u003cstrong data-end=\"244\" data-start=\"218\"\u003eLABYRI labyrinth seal\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-end=\"161\" data-start=\"46\"\u003e\u003cstrong data-end=\"161\" data-start=\"105\"\u003e※Labyrinth seal only – other components not included.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"388\" data-start=\"247\"\u003eWith LABYRI, \u003cstrong data-end=\"317\" data-start=\"260\"\u003eyou no longer need to worry about center seal blowout\u003c\/strong\u003e.\u003cbr data-end=\"321\" data-start=\"318\"\u003eThanks to its innovative non-contact metal design, LABYRI provides:\u003c\/p\u003e\n\u003cul data-end=\"501\" data-start=\"390\"\u003e\n\u003cli data-end=\"416\" data-start=\"390\"\u003e\n\u003cp data-end=\"416\" data-start=\"392\"\u003e\u003cstrong data-end=\"414\" data-start=\"394\"\u003eZero energy loss\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"451\" data-start=\"417\"\u003e\n\u003cp data-end=\"451\" data-start=\"419\"\u003e\u003cstrong data-end=\"449\" data-start=\"422\"\u003eSharp throttle response\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"501\" data-start=\"452\"\u003e\n\u003cp data-end=\"501\" data-start=\"454\"\u003e\u003cstrong data-end=\"501\" data-start=\"457\"\u003eUltra-low resistance, free-spinning feel\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"643\" data-start=\"503\"\u003eExperience a significant improvement in pickup and performance —\u003cbr data-end=\"570\" data-start=\"567\"\u003e\u003cstrong data-end=\"643\" data-start=\"570\"\u003eLABYRI eliminates the risks while maximizing your engine’s potential.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"643\" data-start=\"503\"\u003e\u003cstrong data-end=\"643\" data-start=\"570\"\u003e\u003cstrong data-end=\"104\" data-start=\"81\"\u003eProduct Information\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"317\" data-start=\"118\"\u003eThis is a \u003cstrong data-end=\"154\" data-start=\"128\"\u003efully original product\u003c\/strong\u003e developed by \u003cstrong data-end=\"184\" data-start=\"168\"\u003eINOUE BORING\u003c\/strong\u003e.\u003cbr data-end=\"188\" data-start=\"185\"\u003eThe version shown here is for the \u003cstrong data-end=\"251\" data-start=\"222\"\u003e4-bearing crankshaft type\u003c\/strong\u003e.\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-end=\"432\" data-start=\"319\"\u003eAt the heart of this product is our proprietary \u003cstrong data-end=\"431\" data-start=\"367\"\u003enon-contact, all-metal labyrinth-style center seal — LABYRI\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cul data-end=\"776\" data-start=\"434\"\u003e\n\u003cli data-end=\"543\" data-start=\"434\"\u003e\n\u003cp data-end=\"543\" data-start=\"436\"\u003e\u003cstrong data-end=\"452\" data-start=\"439\"\u003eZero wear\u003c\/strong\u003e – Because it’s non-contact, there is no friction, and thus no mechanical wear over time.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"682\" data-start=\"544\"\u003e\n\u003cp data-end=\"682\" data-start=\"546\"\u003e\u003cstrong data-end=\"568\" data-start=\"548\"\u003eZero energy loss\u003c\/strong\u003e – The non-contact structure also means there's \u003cstrong data-end=\"644\" data-start=\"616\"\u003eno rotational resistance\u003c\/strong\u003e, enabling smoother engine response.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"776\" data-start=\"683\"\u003e\n\u003cp data-end=\"776\" data-start=\"685\"\u003e\u003cstrong data-end=\"729\" data-start=\"689\"\u003eDurable, reliable, and built to last\u003c\/strong\u003e – Ideal for high-performance 2-stroke engines.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"900\" data-start=\"778\"\u003eTrust LABYRI to eliminate the center seal issues that have plagued 2-stroke engines for decades — \u003cstrong data-end=\"899\" data-start=\"877\"\u003ewith no compromise\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-end=\"142\" data-start=\"102\"\u003e🔧 \u003cstrong data-end=\"142\" data-start=\"109\"\u003eKey Features \u0026amp; Selling Points\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cul data-end=\"1095\" data-start=\"144\"\u003e\n\u003cli data-end=\"280\" data-start=\"144\"\u003e\n\u003cp data-end=\"280\" data-start=\"146\"\u003e\u003cstrong data-end=\"190\" data-start=\"148\"\u003eNo other seal kits exist on the market\u003c\/strong\u003e for early-model SS350 — this includes both reproduction parts and labyrinth-type seals.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"430\" data-start=\"281\"\u003e\n\u003cp data-end=\"430\" data-start=\"283\"\u003eAllows you to \u003cstrong data-end=\"380\" data-start=\"300\"\u003econvert the crankshaft of KH400, KH250, and SS400 (or mid-model SS250\/SS350)\u003c\/strong\u003e to the \u003cstrong data-end=\"427\" data-start=\"388\"\u003elow-friction early-model SS350 spec\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"515\" data-start=\"431\"\u003e\n\u003cp data-end=\"515\" data-start=\"433\"\u003e\u003cstrong data-end=\"475\" data-start=\"436\"\u003eReduces the number of main bearings\u003c\/strong\u003e from 6 to 4 — saving on bearing costs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"590\" data-start=\"516\"\u003e\n\u003cp data-end=\"590\" data-start=\"518\"\u003e\u003cstrong data-end=\"546\" data-start=\"521\"\u003eNo machining required\u003c\/strong\u003e on the crankshaft — bolt-on compatibility\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"643\" data-start=\"591\"\u003e\n\u003cp data-end=\"643\" data-start=\"593\"\u003e\u003cstrong data-end=\"621\" data-start=\"596\"\u003eVisually sharp design\u003c\/strong\u003e with crisp contours\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"712\" data-start=\"644\"\u003e\n\u003cp data-end=\"712\" data-start=\"646\"\u003e\u003cstrong data-end=\"676\" data-start=\"649\"\u003eAnodized surface finish\u003c\/strong\u003e for superior corrosion resistance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"786\" data-start=\"713\"\u003e\n\u003cp data-end=\"786\" data-start=\"715\"\u003e Inner shape faithfully matches the OEM spec as closely as possible\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"870\" data-start=\"787\"\u003e\n\u003cp data-end=\"870\" data-start=\"789\"\u003e\u003cstrong data-end=\"825\" data-start=\"792\"\u003eInner bore is left unanodized\u003c\/strong\u003e to maintain precise dimensional tolerances\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"941\" data-start=\"871\"\u003e\n\u003cp data-end=\"941\" data-start=\"873\"\u003e\u003cstrong data-end=\"899\" data-start=\"876\"\u003eNon-contact sealing\u003c\/strong\u003e means zero friction and smooth rotation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1022\" data-start=\"942\"\u003e\n\u003cp data-end=\"1022\" data-start=\"944\"\u003e\u003cstrong data-end=\"974\" data-start=\"947\"\u003eFull metal construction\u003c\/strong\u003e – no aging or deterioration like rubber seals\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1095\" data-start=\"1023\"\u003e\n\u003cp data-end=\"1095\" data-start=\"1025\"\u003eShipping cost is displayed during checkout (flat-rate within Japan)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1100\" data-start=\"1097\"\u003e\n\u003cp data-end=\"1205\" data-start=\"1102\"\u003e\u003cstrong data-end=\"1205\" data-start=\"1102\"\u003eProudly designed and produced by INOUE BORING – engineering precision for vintage 2-stroke engines.\u003c\/strong\u003e\u003c\/p\u003e","brand":"iNOUE BORING","offers":[{"title":"Default Title","offer_id":51626700669141,"sku":"","price":409.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0701\/2502\/7541\/files\/ib-store_rabyri_4.jpg?v=1750828965"},{"product_id":"kawasaki-kh250-45-0-mm-icbm-aluminum-sleeve-finish-cylinder-processing","title":"Kawasaki  KH250 φ45.0 mm ICBM Aluminum Sleeve Finish Cylinder Processing","description":"\u003cp dir=\"ltr\"\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cb id=\"docs-internal-guid-712de3bb-7fff-78b1-1f5a-f165957b1f95\"\u003eAbout This Service\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThis is a cylinder rebuild service for \u003c\/span\u003e\u003cspan\u003eKawasaki   KH250 φ45.0 mm\u003c\/span\u003e\u003cspan\u003e. Upon receipt of your cylinder, we will rebuild it and return it to you. Please send us only the cylinder and the corresponding piston, with payment in advance. We will install an aluminum sleeve plated with nickel-silicon-carbide (hardness second only to diamond) and ensure proper piston clearance before returning it to you.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eNever Wears Out. Seizure-Proof. Lightweight.\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eRide right away—no break-in required\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eExceptionally long-lasting\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eOne-third the weight of cast iron\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003e5× the heat transfer of cast iron\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eRust-free\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eWhat is ICBM Processing?\u003c\/span\u003e\u003c\/h2\u003e\n\u003col\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eRemove the original cast-iron sleeve.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eInstall a precision nickel-silicon-carbide-plated aluminum sleeve.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eRide with a lightweight, ultra-durable cylinder that preserves itself as you go.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eHow to Order\u003c\/span\u003e\u003c\/h2\u003e\n\u003col\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eClick [Add to Cart] to purchase the machining service only.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eComplete the quote\/service form below.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eWithin one business day we’ll confirm schedule by email.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003ePrint the confirmation PDF and include it when you ship us your parts.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eAfter machining, we inspect every component and ship it back to you.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eShipping address: \u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eInoue Boring Co., Ltd.\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e〒350-1155 Saitama Prefecture Kawagoe City Shimoakasaka Onohara 671\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e℡：+81-49-261-5833\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eWe Buy Your Spare Cylinders\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eUpgraded to ICBM cylinders? Sell your leftover originals to us—just submit a buy-back request through our\u003c\/span\u003e\u003ca href=\"https:\/\/ibgshop.net\/pages\/contact\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003einquiry form\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003e**Need pistons supplied? Request a quote on our \u003c\/span\u003e\u003ca href=\"https:\/\/ibgshop.net\/products\/icbm%E2%84%A2-cylinder-processing-nickel-silicon-carbide-plating-request-a-quote-before-ordering\"\u003e\u003cspan\u003eEstimate Request page.\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003eProcessing takes about 20 business days.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eAll work is completed in our insured, domestic facility, and every component is quality-guaranteed. Ride with confidence—preserve your engine for the next generation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"INOUE BORING","offers":[{"title":"Default Title","offer_id":51821141000405,"sku":null,"price":2000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0701\/2502\/7541\/files\/kh250-2.jpg?v=1759897476"},{"product_id":"yamaha-rz250-early-model-54-0-mm-std-port-with-bridge-icbm-aluminum-sleeve-finish-cylind","title":"YAMAHA　RZ250  Early model φ54.0 mm STD　Port with bridge　ICBM Aluminum Sleeve Finish Cylinder Processing","description":"\u003cp dir=\"ltr\"\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cb id=\"docs-internal-guid-712de3bb-7fff-78b1-1f5a-f165957b1f95\"\u003eAbout This Service\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-end=\"365\" data-start=\"135\"\u003eThis is a \u003cstrong data-end=\"198\" data-start=\"145\"\u003ecylinder rebuild service for YAMAHA RZ250 (φ54mm) early model\u003c\/strong\u003e.\u003cbr data-end=\"202\" data-start=\"199\"\u003eUpon receipt of your cylinder, we will rebuild it and return it to you.\u003cbr data-end=\"276\" data-start=\"273\"\u003ePlease send us only the cylinder and the corresponding piston, with payment in advance.\u003c\/p\u003e\n\u003cp data-end=\"539\" data-start=\"367\"\u003eWe will install an \u003cstrong data-end=\"440\" data-start=\"386\"\u003ealuminum sleeve plated with nickel-silicon-carbide\u003c\/strong\u003e (hardness second only to diamond) and ensure proper piston clearance before returning it to you.\u003c\/p\u003e\n\u003cp data-end=\"775\" data-start=\"541\"\u003eThis rebuild also features \u003cstrong data-end=\"623\" data-start=\"568\"\u003eInoue Boring’s original “Bridge-Port” specification\u003c\/strong\u003e, a unique \u003cstrong data-end=\"664\" data-start=\"634\"\u003epillar-type port structure\u003c\/strong\u003e designed to enhance durability and gas flow stability — ideal for high-performance and long-lasting results.\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eNever Wears Out. Seizure-Proof. Lightweight.\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eRide right away—no break-in required\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eExceptionally long-lasting\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eOne-third the weight of cast iron\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003e5× the heat transfer of cast iron\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eRust-free\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eWhat is ICBM Processing?\u003c\/span\u003e\u003c\/h2\u003e\n\u003col\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eRemove the original cast-iron sleeve.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eInstall a precision nickel-silicon-carbide-plated aluminum sleeve.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eRide with a lightweight, ultra-durable cylinder that preserves itself as you go.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eHow to Order\u003c\/span\u003e\u003c\/h2\u003e\n\u003col\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eClick [Add to Cart] to purchase the machining service only.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eComplete the quote\/service form below.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eWithin one business day we’ll confirm schedule by email.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003ePrint the confirmation PDF and include it when you ship us your parts.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eAfter machining, we inspect every component and ship it back to you.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eShipping address: \u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eInoue Boring Co., Ltd.\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e〒350-1155 Saitama Prefecture Kawagoe City Shimoakasaka Onohara 671\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e℡：+81-49-261-5833\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eWe Buy Your Spare Cylinders\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eUpgraded to ICBM cylinders? Sell your leftover originals to us—just submit a buy-back request through our\u003c\/span\u003e\u003ca href=\"https:\/\/ibgshop.net\/pages\/contact\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003einquiry form\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003e**Need pistons supplied? Request a quote on our \u003c\/span\u003e\u003ca href=\"https:\/\/ibgshop.net\/products\/icbm%E2%84%A2-cylinder-processing-nickel-silicon-carbide-plating-request-a-quote-before-ordering\"\u003e\u003cspan\u003eEstimate Request page.\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003eProcessing takes about 20 business days.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eAll work is completed in our insured, domestic facility, and every component is quality-guaranteed. Ride with confidence—preserve your engine for the next generation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"INOUE BORING","offers":[{"title":"Default Title","offer_id":52267526258901,"sku":null,"price":1500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0701\/2502\/7541\/files\/RZ250_54_fcb8689d-0cc0-4802-b459-9c1694c3a432.jpg?v=1761718810"},{"product_id":"yamaha-rz350-64-0-mm-std-port-with-bridge-icbm-aluminum-sleeve-finish-cylinder-pro","title":"YAMAHA RZ350 64.0 mm STD Port with bridge ICBM Aluminum Sleeve Finish Cylinder Processing","description":"\u003ch2\u003eItem Specifics\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eService\u003c\/td\u003e\n\u003ctd\u003eMachine Type\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Model\u003c\/td\u003e\n\u003ctd\u003eYAMAHA RZ350\u003c\/td\u003e\n\u003ctd\u003eBore Diameter\u003c\/td\u003e\n\u003ctd\u003eφ64.0 mm STD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePort Spec\u003c\/td\u003e\n\u003ctd\u003eBridge-Port\u003c\/td\u003e\n\u003ctd\u003eSleeve Material\u003c\/td\u003e\n\u003ctd\u003eAluminum (Nickel-Silicon-Carbide Plated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine Type\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYAMAHA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eService Type\u003c\/td\u003e\n\u003ctd\u003eICBM Cylinder Processing\u003c\/td\u003e\n\u003ctd\u003eTurnaround\u003c\/td\u003e\n\u003ctd\u003eApprox. 20 business days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry\/Region of Manufacture\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eiNOUE BORING\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePerformance Part\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eAbout This Service\u003c\/h2\u003e\n\u003cp\u003eThis is a \u003cstrong\u003ecylinder rebuild service for YAMAHA RZ350 (φ64mm)\u003c\/strong\u003e.\u003cbr\u003eUpon receipt of your cylinder, we will rebuild it and return it to you.\u003cbr\u003ePlease send us only the cylinder and the corresponding piston, with payment in advance.\u003c\/p\u003e\n\u003cp\u003eWe will install an \u003cstrong\u003ealuminum sleeve plated with nickel-silicon-carbide\u003c\/strong\u003e (hardness second only to diamond) and ensure proper piston clearance before returning it to you.\u003c\/p\u003e\n\u003cp\u003eThis rebuild also features \u003cstrong\u003eInoue Boring's original \"Bridge-Port\" specification\u003c\/strong\u003e, a unique \u003cstrong\u003epillar-type port structure\u003c\/strong\u003e designed to enhance durability and gas flow stability — ideal for high-performance and long-lasting results.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eNever Wears Out. Seizure-Proof. Lightweight.\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRide right away — no break-in required\u003c\/li\u003e\n\u003cli\u003eExceptionally long-lasting\u003c\/li\u003e\n\u003cli\u003eOne-third the weight of cast iron\u003c\/li\u003e\n\u003cli\u003e5× the heat transfer of cast iron\u003c\/li\u003e\n\u003cli\u003eRust-free\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eWhat is ICBM Processing?\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eRemove the original cast-iron sleeve.\u003c\/li\u003e\n\u003cli\u003eInstall a precision nickel-silicon-carbide-plated aluminum sleeve.\u003c\/li\u003e\n\u003cli\u003eRide with a lightweight, ultra-durable cylinder that preserves itself as you go.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eHow to Order\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eClick [Add to Cart] to purchase the machining service only.\u003c\/li\u003e\n\u003cli\u003eComplete the quote\/service form below.\u003c\/li\u003e\n\u003cli\u003eWithin one business day we'll confirm schedule by email.\u003c\/li\u003e\n\u003cli\u003ePrint the confirmation PDF and include it when you ship us your parts.\u003c\/li\u003e\n\u003cli\u003eAfter machining, we inspect every component and ship it back to you.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eWe Buy Your Spare Cylinders\u003c\/h2\u003e\n\u003cp\u003eUpgraded to ICBM cylinders? Sell your leftover originals to us — just submit a buy-back request through \u003ca href=\"https:\/\/inoueboring.com\/pages\/quote\"\u003eQuote \u0026amp; Service Form.\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e**Need pistons supplied? Request a quote on our \u003ca href=\"https:\/\/ibgshop.net\/products\/icbm%E2%84%A2-cylinder-processing-nickel-silicon-carbide-plating-request-a-quote-before-ordering\"\u003eEstimate Request page.\u003c\/a\u003e\u003cbr\u003eProcessing takes about 20 business days.\u003c\/p\u003e\n\u003cp\u003eAll work is completed in our insured, domestic facility, and every component is quality-guaranteed. Ride with confidence — preserve your engine for the next generation.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eYear\u003c\/td\u003e\n\u003ctd\u003eMake\u003c\/td\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eBore\u003c\/td\u003e\n\u003ctd\u003eNotes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eYAMAHA\u003c\/td\u003e\n\u003ctd\u003eRZ350\u003c\/td\u003e\n\u003ctd\u003eφ64.0 mm STD\u003c\/td\u003e\n\u003ctd\u003eBridge-Port spec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"faq-section\"\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003e▶ What is ICBM cylinder processing?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eICBM (Inoue Boring Cylinder Bore Finishing Method) involves removing the original cast-iron sleeve, installing a precision nickel-silicon-carbide-plated aluminum sleeve, and finishing to exact piston clearance. The result is a lightweight, ultra-durable cylinder that is seizure-proof and requires no break-in.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003e▶ What is the Bridge-Port specification?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eBridge-Port is iNOUE BORING's original pillar-type port structure that enhances durability and gas flow stability. It is ideal for high-performance and long-lasting engine results on the YAMAHA RZ350.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003e▶ How do I order the cylinder rebuild service?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eAdd the service to cart, complete the quote\/service form, and wait for email confirmation within one business day. Then ship your cylinder and piston to iNOUE BORING Co., Ltd., 671 Shimoakasaka Onohara, Kawagoe, Saitama 350-1155, Japan.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003e▶ How long does processing take?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eProcessing takes approximately 20 business days. After machining, every component is inspected and shipped back to you.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003e▶ Can iNOUE BORING supply pistons?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes. If you need pistons supplied, please request a quote on the Estimate Request page before ordering.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\n\u003ch2\u003eLearn More About iNOUE BORING Technology\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/blogs\/icbm%E2%84%A2-blog\/what-is-icbm%E2%84%A2-technology-a-new-future-for-vintage-engines\"\u003eWhat Is ICBM™ Technology? A New Future for Vintage Engines\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/blogs\/news\/icbm-the-weapon-that-ended-the-age-of-speed\"\u003eICBM — The Weapon That Ended the Age of Speed\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/blogs\/icbm%E2%84%A2-blog\/the-icbm%E2%84%A2-feel-lighter-sharper-smoother\"\u003eThe ICBM™ Feel: Lighter, Sharper, Smoother\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/yamaha-rz250-early-model-54-0-mm-std-port-with-bridge-icbm-aluminum-sleeve-finish-cylind\"\u003eYAMAHA RZ250 Early model 54.0 mm STD　Port with bridge ICBM Aluminum Sleeve Finish Cylinder Processing — View Product\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/icbm-cylinder-processing-nickel-silicon-carbide-plating-request-a-quote-before-ordering\"\u003eCustom ICBM Cylinder Processing — Free Quote Request\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\n  \u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is ICBM cylinder processing?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"ICBM (Inoue Boring Cylinder Bore Finishing Method) involves removing the original cast-iron sleeve, installing a precision nickel-silicon-carbide-plated aluminum sleeve, and finishing to exact piston clearance. The result is a lightweight, ultra-durable cylinder that is seizure-proof and requires no break-in.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the Bridge-Port specification?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Bridge-Port is iNOUE BORING's original pillar-type port structure that enhances durability and gas flow stability. It is ideal for high-performance and long-lasting engine results on the YAMAHA RZ350.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I order the cylinder rebuild service?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Add the service to cart, complete the quote\/service form, and wait for email confirmation within one business day. Then ship your cylinder and piston to iNOUE BORING Co., Ltd., 671 Shimoakasaka Onohara, Kawagoe, Saitama 350-1155, Japan.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How long does processing take?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Processing takes approximately 20 business days. After machining, every component is inspected and shipped back to you.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can iNOUE BORING supply pistons?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. If you need pistons supplied, please request a quote on the Estimate Request page before ordering.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"INOUE BORING","offers":[{"title":"Default Title","offer_id":52267785158869,"sku":null,"price":1500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0701\/2502\/7541\/files\/YAMAHA_RZ350_64_mm_ICBM_aluminum_sleeve_cylinder_Bridge-Port_spec_iNOUE_BORING_Japan.jpg?v=1778058121"},{"product_id":"suzuki-gt380-54-0-mm-std-port-with-bridge-port-icbm-aluminum-sleeve-finish-cylinder-processing","title":"SUZUKI GT380 φ 54.0 mm STD ICBM Aluminum Sleeve Finish Cylinder Processing","description":"\u003ch2\u003eAbout This Service\u003c\/h2\u003e\n\u003cp\u003eThis is a \u003cstrong\u003ecylinder rebuild service for SUZUKI GT380 (Φ 54 mm)\u003c\/strong\u003e.\u003cbr\u003eUpon receipt of your cylinder, we will rebuild it and return it to you.\u003cbr\u003ePlease send us only the cylinder and the corresponding piston, with payment in advance.\u003c\/p\u003e\n\u003cp\u003eWe will install an \u003cstrong\u003ealuminum sleeve plated with nickel-silicon-carbide\u003c\/strong\u003e (hardness second only to diamond) and ensure proper piston clearance before returning it to you.\u003c\/p\u003e\n\u003cp\u003eThis rebuild also features \u003cstrong\u003eInoue Boring’s original “Bridge-Port” specification\u003c\/strong\u003e, a unique \u003cstrong\u003epillar-type port structure\u003c\/strong\u003e designed to enhance durability and gas flow stability — ideal for high-performance and long-lasting results.\u003c\/p\u003e\n\n\u003cbr\u003e\n\n\u003ch2\u003eNever Wears Out. Seizure-Proof. Lightweight.\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eRide right away—no break-in required\u003c\/li\u003e\n  \u003cli\u003eExceptionally long-lasting\u003c\/li\u003e\n  \u003cli\u003eOne-third the weight of cast iron\u003c\/li\u003e\n  \u003cli\u003e5 x the heat transfer of cast iron\u003c\/li\u003e\n  \u003cli\u003eRust-free\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cbr\u003e\n\n\u003ch2\u003eWhat is ICBM™ Processing?\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eRemove the original cast-iron sleeve.\u003c\/li\u003e\n  \u003cli\u003eInstall a precision nickel-silicon-carbide-plated aluminum sleeve.\u003c\/li\u003e\n  \u003cli\u003eRide with a lightweight, ultra-durable cylinder that preserves itself as you go.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cbr\u003e\n\n\u003ch2\u003eWe Buy Your Spare Cylinders\u003c\/h2\u003e\n\u003cp\u003eUpgraded to ICBM cylinders? Sell your leftover originals to us—just submit a buy-back request through our \u003ca href=\"https:\/\/inoueboring.com\/pages\/contact\"\u003einquiry form\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eNeed pistons supplied? Request a quote on our \u003ca href=\"https:\/\/inoueboring.com\/products\/icbm-cylinder-processing-nickel-silicon-carbide-plating-request-a-quote-before-ordering\"\u003eEstimate Request page\u003c\/a\u003e. Processing takes about 20 business days.\u003c\/p\u003e\n\u003cp\u003eAll work is completed in our insured, domestic facility, and every component is quality-guaranteed. Ride with confidence—preserve your engine for the next generation.\u003c\/p\u003e\n\n\u003cbr\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"faq-section\"\u003e\n  \u003cdetails open\u003e\n    \u003csummary\u003e\u003cstrong\u003e▶ What is ICBM™ cylinder processing?\u003c\/strong\u003e\u003c\/summary\u003e\n    \u003cp\u003eICBM™ processing replaces the original cast-iron sleeve with a precision nickel-silicon-carbide-plated aluminum sleeve. The result is a cylinder that is lightweight, seizure-proof, rust-free, and exceptionally long-lasting — with no break-in period required.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails open\u003e\n    \u003csummary\u003e\u003cstrong\u003e▶ What is the Bridge-Port specification?\u003c\/strong\u003e\u003c\/summary\u003e\n    \u003cp\u003eInoue Boring’s original Bridge-Port specification uses a pillar-type port structure designed to enhance durability and gas flow stability, ideal for high-performance and long-lasting results.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails open\u003e\n    \u003csummary\u003e\u003cstrong\u003e▶ What do I need to send for the rebuild service?\u003c\/strong\u003e\u003c\/summary\u003e\n    \u003cp\u003ePlease send us only the cylinder and the corresponding piston, with payment in advance. Upon receipt, we will rebuild it and return it to you.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails open\u003e\n    \u003csummary\u003e\u003cstrong\u003e▶ How long does processing take?\u003c\/strong\u003e\u003c\/summary\u003e\n    \u003cp\u003eProcessing takes approximately 20 business days.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails open\u003e\n    \u003csummary\u003e\u003cstrong\u003e▶ Can you supply pistons?\u003c\/strong\u003e\u003c\/summary\u003e\n    \u003cp\u003eYes. If you need pistons supplied, please request a quote on our \u003ca href=\"https:\/\/inoueboring.com\/products\/icbm-cylinder-processing-nickel-silicon-carbide-plating-request-a-quote-before-ordering\"\u003eEstimate Request page\u003c\/a\u003e.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails open\u003e\n    \u003csummary\u003e\u003cstrong\u003e▶ Do you buy back original cylinders?\u003c\/strong\u003e\u003c\/summary\u003e\n    \u003cp\u003eYes. If you have upgraded to ICBM cylinders and have leftover originals, you can sell them back to us via our \u003ca href=\"https:\/\/inoueboring.com\/pages\/contact\"\u003einquiry form\u003c\/a\u003e.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003cbr\u003e\n  \n\u003ch2\u003eLearn More About ICBM™ Technology\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/blogs\/icbm%E2%84%A2-blog\/what-is-icbm%E2%84%A2-technology-a-new-future-for-vintage-engines\"\u003eWhat Is ICBM™ Technology? A New Future for Vintage Engines\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/blogs\/news\/h2-cylinders-icbm%C2%AE\"\u003eH2 Cylinders ICBM® — Detailed Specifications\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/blogs\/news\/why-we-built-a-billet-h2-cylinder-and-what-it-means-for-icbm\"\u003eWhy We Built a Billet H2 Cylinder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cbr\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is ICBM aluminized cylinder processing?\",\n      \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"ICBM processing replaces the original cast-iron sleeve with a precision nickel-silicon-carbide-plated aluminum sleeve. The result is a cylinder that is lightweight, seizure-proof, rust-free, and exceptionally long-lasting with no break-in period required.\" }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the Bridge-Port specification?\",\n      \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Inoue Boring's original Bridge-Port specification uses a pillar-type port structure designed to enhance durability and gas flow stability, ideal for high-performance and long-lasting results.\" }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What do I need to send for the rebuild service?\",\n      \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Please send us only the cylinder and the corresponding piston, with payment in advance. Upon receipt, we will rebuild it and return it to you.\" }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How long does processing take?\",\n      \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Processing takes approximately 20 business days.\" }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can you supply pistons?\",\n      \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Yes. If you need pistons supplied, please request a quote on our Estimate Request page at https:\/\/inoueboring.com\/products\/icbm-cylinder-processing-nickel-silicon-carbide-plating-request-a-quote-before-ordering\" }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Do you buy back original cylinders?\",\n      \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Yes. If you have upgraded to ICBM cylinders and have leftover originals, you can sell them back to us via our inquiry form at https:\/\/inoueboring.com\/pages\/contact\" }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"INOUE BORING","offers":[{"title":"Default Title","offer_id":52323019981013,"sku":null,"price":2380.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0701\/2502\/7541\/files\/GT380.jpg?v=1762922021"}],"url":"https:\/\/inoueboring.com\/collections\/icbm-plated-aluminium-sleeve-for-2-stroke-engines.oembed","provider":"iNOUE BORING","version":"1.0","type":"link"}