ATHENA Cylinder Kit - 54.00 mm - YZ125 P400485100017

Cylinder Kit - 54.00 mm - YZ125 Aluminum cylinder is nickel carbide coated designed with larger water jackets, Specially designed, high performance, hard anodized power valves (cannot use OEM), There is an aluminum cylinder head with a removable bronze dome allowing for a higher compression ratio and anti-detonation features (except where noted), Kit also includes a Cast-Lite flat top piston kit, and an Athena top-end gasket set that includes required seals and hardware, Bolt on; no matching required except where noted