ATHENA Big Bore Cylinder kit for HONDA CRF150R 2007-17. This is a 164CC BIG BORE KIT. Will give greater cooling capacity and increased horsepower and torque. This kit is a TRUE BOLT ON, comes complete with A new Cylinder Simply bolt it up. Keep all your orginal parts.
Comes with the following:
1. Aluminum cylinder with a nickel carbide coating designed with wider water jackets
2. 102mm Forged piston kit with a moly coating
3. Top end gasket set
4. Complete instructions