MX | ROADRACE | KARTING | MOPED
Tune your roadrace engine with our VHM upgrade kit parts! The VHM cylinder head and insert will lead to more engine power and a better heat transference. Our crankshaft will give less vibrations and better mid and top over revolutions due to increased inertia. Moreover, the big end of the VHM rod only deforms 0.005mm, compared to 0.015-0.02mm oval deforming from standard conrod through engine braking.