Collection: ICBM™ and EverSleeve™ for 4-Stroke Engines

Enhance the performance and durability of your 4-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.

Supported 4-Stroke Engines