Description
Fitment:
Honda XR/CRF50 (2000-Present)Impressive Power. Engineered and developed by BBR. This cylinder retains skid plate mounts and includes: BBR aluminum cylinder, piston kit, exclusive BBR motocross-grind camshaft and gasket kit. Easy bolt-on instructions included. The most reliable kit available. Runs great with stock carb or bolt on BBR’s 18mm carb kit.
- Cylinder retains skid plate mounts
- BBR aluminum cylinder
- 52mm piston specially designed to work with your stock cylinder head’s combustion chamber
- MX-grind camshaft
- Gasket kit
- Easy bolt-on instructions included
Installation Note: This kit will not work with the Honda XR/CRF70 or other big port cylinder heads. It is designed for the tiny combustion chamber of the OEM Honda XR/CRF50 cylinder head. The flat top piston dome will result in an extremely low compression ratio when combined with the XR/CRF70 type cylinder head. The result is a motor that makes less horsepower than stock. BBR Does not currently make a big bore kit for the XR/CRF70.
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