VHM are always looking to see that motocross and enduro bikes are the best they can be,while track testing with the Honda CRF250 and CRF450 they found while racing the clutch would change its bite point.
The research into this found the cranks expansion when heated up expands enough for the standard steel clutch shaft which does not expand at the same rate would be to short.
The answer is to make a rod from alloy and to steel tip each end to give the required resistance to wear.
This part will ensure your clutch lasts as long as it can under the conditions.
The standard clutch axle is made from one piece of steel. With a engine running at higher operating , the standard clutch axle expand less than the rest of the engine, which gives more play on the clutch lever. This will result in a bad working clutch.
The VHM clutch axle is made from hardened steel and the middle of the axle is made from aluminium. The VHM clutch axle will expand and shrink exactly the same as the rest of the engine. Whether the engine is hot or cold, the clutch lever will always work perfectly.
