120cc Big Bore Kit - 58mm - Honda CRF100F XR100R

TB Parts 120cc (58mm) Big Bore Kit
Fits All Years of the Honda CRF100F & XR100R 
TBW9087

- Aluminum cylinder with steel sleeve
- High compression 58mm piston with rings, pin, & clips
- Head gasket kit

Affordable and will make your XR100 or CRF100F a lot more fun to ride by adding some needed power.  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.


Replacement Part Info:
TBW0625 - Cylinder
TBW0626 - Piston
TBW0627 - Gasket set