Part Description
Variable Pressure Plate for diaphragm spring equipped High Performance clutch on 1936-early 1984 Big Twin
Text excerpt from the catalog:
This variable pressure plate assembly increases pressure at higher RPM. Less effort is required to pull the clutch lever while shifting. Under the influence of high horsepower a dramatic increase in clutching power is obtained. Up to 60% more clutch pack compression allows to use a lighter diaphragm clutch spring. These TPP Variable Clutches can only be used on diaphragm spring equipped High Performance clutches.
