Cylinder kits include cylinder, head, piston assembly, reeds, and gaskets

Piston kits include piston, rings, wrist pin, and circlips

Carburetors have a manual choke assembly

Hyper Race crankshafts have a lighter connecting rod, full crank rounds, and special needle bearings, but will not work with OEM type stock or standard Athena big bore pistons due to the larger 12mm wrist pin size.