NEW! 132cc Big Bore Performance Kit (61mm):

- All aluminum ceramic plated 61mm skirtless cylinder
- High compression 61mm piston with rings, pin, & clips
- Head gasket kit
- Race cam

Affordable and will make your XR or CRF100 a lot more fun to ride!  This kit does not require boring of the case - simply bolt on and go!!

There are no installation instructions, but if you can replace your piston, you can install this kit. If you don't have any experience working on your engine, we highly recommend the Clymer's repair manual available in this section. The parts are installed in the same manner as the stock Honda parts.