50 Caliber Racing Stage 2 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 Z50, XR50 or CRF50. 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.
Delivery policy
Return policy
50 Caliber Racing Stage 2 88cc Big Bore Kit for Z50 (1992-1999), XR and CRF 50's (2000-Present)
Our 50 Caliber Racing Stage 2 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 Z50, XR50 or CRF50. 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 (you can still run pump gas)
- Head gasket kit, all gasket included needed for install.
- 20mm Performance carb assembly. Includes: 20mm carb, intake, heatstop, gaskets, mounting hardware/wrench, air filter, and long throttle cable
- Performance camshaft
Fits:
HONDA
- Z50 (1992-1999)
- XR50 (2000-Present)
- CRF50 (2000-Present)
*High volume oil pump is recommended