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Final Markdown 108cc Stroker Bore Kit #3 - Tb Parts - Tbw0968 - '88-current Honda Crf Xr Z 50 And 70 Your 30% Coupon Inside [GndW7T2D]

$47.99 $153.99 -69%

108cc Stroker Bore Kit #3 for Honda XR and Z Models This comprehensive 108cc Stroker Bore Kit #3 from TB Parts is designed to transform your stock Honda CRF50, CRF70, XR50, XR70, and Z50 engine into a powerful open class engine, significantly outperf

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Final Markdown 108cc Stroker Bore Kit #3 - Tb Parts - Tbw0968 - '88-current Honda Crf Xr Z 50 And 70 Your 30% Coupon Inside [GndW7T2D]

108cc Stroker Bore Kit #3 for Honda XR and Z Models

This comprehensive 108cc Stroker Bore Kit #3 from TB Parts is designed to transform your stock Honda CRF50, CRF70, XR50, XR70, and Z50 engine into a powerful open class engine, significantly outperforming common Chinese 107 and 125cc engines. Crafted with precision and featuring high-quality components, this kit is the ultimate choice for enthusiasts seeking a substantial power upgrade for their Honda off-road motorcycles.

Key Features and Specifications

The kit boasts a 51mm crankshaft with NTN bearings for enhanced durability and performance. It includes a high-compression piston with rings, pin, and clips, ensuring a precise fit and smooth operation. The NEW Race Head features larger valves (25/22mm) and improved flow for increased performance, complemented by bigger cooling fins for enhanced heat dissipation. Additional highlights of the kit include:
  • Lightweight aluminum cylinder with steel sleeve for enhanced heat management and improved performance.
  • High-performance race camshaft for increased power and torque.
  • NEW Genuine Mikuni VM26mm Performance Carb for optimized air-fuel mixture and superior engine efficiency.

Practical Uses and Benefits

This kit is an ideal solution for riders looking to elevate their Honda motorcycle's performance. With its comprehensive design and top-tier components, it guarantees a seamless and effective conversion to a powerful 108cc engine. Key benefits of this kit include:
  • No fitment issues, as the kit is designed to work seamlessly with newer Honda engines, eliminating the need for trimming or modification.
  • Complete package that includes all necessary parts, ensuring a hassle-free installation process.
The kit is perfect for both professional technicians and DIY enthusiasts, provided the latter has access to a Clymer or Honda shop manual. It is also important to consider additional components such as a high-volume oil pump, oil cooler, and a suitable spark plug for optimal performance.

What Our Customers Say

January 19, 2026

Absolutely no complaints!

It's a very well-designed and effective item. I'm a very happy user.

- Nick G..

January 19, 2026

Absolutely no complaints!

This product is a fantastic investment. The quality is clear.

- Ophelia H..

January 19, 2026

Absolutely no complaints!

It's a very intuitive product; I figured it out without the manual.

- Elias F..

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