About this product
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.
Also fits 1988-1999 Z50R with short piston.
- 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. This is the correct BBR bore kit for the XR/CRF70.
BBR General Jetting Guidelines Chart
Description supplied by BBR Motorsports through its current Shopify listing. Product, performance, and health claims are the seller’s and have not been independently verified by StorkScout.
