Honda 70 Stage 1 Big Bore Kit XR70 CRF70

50 Caliber Racing Stage 1 88cc Big Bore kit (52mm bore) for Honda XR70 and CRF70

Our 50 Caliber Racing Stage 1 Big Bore Kits are top quality and come with everything you need to finish the job. This is a great way to pump up your Honda XR70 or CRF70. This kit is recommended for those who don't want to spend a fortune but still want to see a nice power increase over the stock engine. It can be installed by anyone with basic mechanical skills who isn't afraid to turn some nuts and bolts.

Includes:
- Lightweight aluminum cylinder with steel sleeve
- Cast in mounts on cylinder for aftermarket skid plates
- Oversized cooling fins on cylinder for efficient heat dissipation
- High compression 52mm piston with rings, pin, & clips (can still run pump gas)
- Head gasket kit includes all gasket needed to install big bore kit

Fits:
HONDA
-  XR70 (1997-2003)
- CRF70 (2004-2016)

*High volume oil pump is recommended