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Variable PRessure Clutches (VPC) Double click on above image to view full picture

Variable Pressure Clutch (VPC)

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As low as: $37.00

Price as configured: $0.00

Overview

One of the less desirable byproducts of increased power is the need for a clutch spring upgrade, and the additional lever effort it requires. By adding the Variable Pressure Clutch (VPC) devise, clutch plate holding pressure is reduced at lower RPM’s, and increased as RPM rises, reducing the chance of clutch slippage as power builds. the VPC system reduces initial pressure and uses weights and centrifugal force to increase pressure as RPM builds. Clutch lever effort is reduced up to 50% at idle and low RPM, resulting in less hand fatigue, smoother engagement and easy neutral location.

Price as configured: $0.00

Details


One of the less desirable byproducts of increased power is the need for a clutch spring upgrade, and the additional lever effort it requires. By adding the Variable Pressure Clutch (VPC) devise, clutch plate holding pressure is reduced at lower RPM’s, and increased as RPM rises, reducing the chance of clutch slippage as power builds.

The factory system uses a diaphragm spring that applies a constant pressure amount across the RPM range, while the VPC system reduces initial pressure and uses weights and centrifugal force to increase pressure as RPM builds. Clutch lever effort is reduced up to 50% at idle and low RPM, resulting in less hand fatigue, smoother engagement and easy neutral location. Installation is easy (on most Big Twins it can be performed through the derby cover opening!).

Derby covers may require clearancing or Due to its centrifugal nature, lever effort is increased over 4,000 RPM. Some custom may not work with the VPC. Can be used with the stock or Screamin’ Eagle® clutch spring (using SE spring raises torque handling capability). Choose the VPC that best fits your engine’s power output!

v.20131031

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Additional Information

Brand No
Engine Type Big Twin®, Sportster®, Twin Cam®
Model No
Year Range No
Transmission Type No
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