iNOUE BORING
Kawasaki H1 500SS Mach III STD φ60.5/61.0 mm ICBM™ Aluminum Sleeve‐Finish Cylinder Processing
Kawasaki H1 500SS Mach III STD φ60.5/61.0 mm ICBM™ Aluminum Sleeve‐Finish Cylinder Processing
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Never Wears Out. Seizure-Proof. Lightweight.
- Ride right away—no break-in required
- Exceptionally long-lasting
- One-third the weight of cast iron
- 5× the heat transfer of cast iron
- Rust-free
What is ICBM™ Processing?
- Remove the original cast-iron sleeve.
- Install a precision nickel-silicon-carbide-plated aluminum sleeve.
- Ride with a lightweight, ultra-durable cylinder that preserves itself as you go.
How to Order
- Click [Add to Cart] to purchase the machining service only.
- Complete the Quate Request/Service Form below.
- Within one business day we’ll confirm price and schedule by email.
- Print the quote PDF and include it when you ship us your parts.
- After machining, we inspect every component and ship it back to you.
Need pistons supplied? Request a quote on our Estimate Request page.
Processing takes ≈ 20 business days.
Compatibility
| Year | Make | Model | Submodel | Notes |
| 1975 | Kawasaki | H2 | Mach IV | |
| 1974 | Kawasaki | H2 | Mach IV | |
| 1973 | Kawasaki | H2 | Mach IV | |
| 1972 | Kawasaki | H2 | Mach IV |
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Please fill out the form below:
Enter your engine information and click “Submit.” We’ll confirm you within one business day.
ICBM™ gives your engine alive again!
- Long-lasting super durability
- Preserve your engine while riding
- Feel the engine's pulse forever!
“We want to create a cylinder that doesn't wear down...” This has been Inoue Boring’s long-held dream. This technology dramatically improves the durability of the cylinder bore by manufacturing an aluminum sleeve and applying a special plating to the inside diameter.
Why ICBM™ is "Revolutionary”
✔ Exceptional wear resistance
✔ Lightweight
✔ Low friction (reduces ring wear)
✔ Highly resistant to seizure
✔ Excellent heat dissipation
✔ Uniform expansion rate
✔ And it’s rust-resistant!
TESTIMONIALS
”Elegance Reborn: My Mach III Runs Like New”
My Kawasaki Mach III is over 50 years old. Many parts were worn out, so I used Inoue Boring’s modern engine work to bring it back. With ICBM™ treatments, it runs smooth and strong. It won First Place at a restoration contest hosted by Inoue Boring. This bike is old—but alive.
-Mr.Hirakawa Kawasaki H1 Owner
Japan
”Back to Life: My Orange H1-B with ICBM™”
“After years in storage, I brought my H1-B back with Inoue Boring’s ICBM™ treatment. The old cast-iron sleeve was replaced with an aluminum one, letting me return to the standard bore. I even added a bridge port. It’s not about more power—it’s about bringing back the ride I remember.”
-Mr. Katsumi Taguchi Kawasaki H1-B Owner
Japan
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