Tune your motocross engine with our VHM upgrade kit parts! The kit is specially composed to gain the best performance from your 65cc bike with VHM parts. This combination of high performance parts, including a 12 degree VHM piston kit, will ensure a faster throttle response, more torque and power for the fastest lap times on track. The bike will also give a better handling and higher corner speed.
This upgrade kit contains our 12 degree VHM piston, which can only be used in combination with our special insert for 12° piston.