MX | ROADRACE | KARTING | MOPED
Tune your engine! Considerably increase your bike's mid to top range power with our VHM cylinder head, insert, 12° billet piston and crankshaft. We've also produced a superior, stronger than stock, lock washer for the starter intermediate gear to prevent engine failures.
This upgrade kit contains our 12° VHM piston, which can only be used in combination with our special insert for 12° piston.