VHM Upgrade Kit
Tune your engine with our VHM upgrade kit parts! Our VHM 12 degree piston kit, manufactured from high grade aluminium, keeps it's high performance during lifetime. The VHM middle inertia crankshaft with modified balance and inertia ensures less vibration and smooths the power delivery to the rear wheel. These tuning parts on your engine are further optimized by using our VHM ignition map from our CDI unit.