Variable Pressure Three-Stud Style A&S Clutch
Huntington Beach, California based Harley performance clutch specialist AIM Corp.'s Variable Pressure (VP) three-stud style Assist and Slipper (A&S) clutch with its slide weights will create a claimed 40% more clamping force over stock at 4,000 rpm, raising the overall torque capacity to 120+ ft-lbs.
The easier pull is 20% lighter than the stock Harley Big Twin clutch during low rpm on 2018+ M-8 Softails. The kit handles up to 105 ft-lbs of torque with the optional soft coil spring kit. With the OEM 2018 clutch spring it can handle up to 120 ft-lbs torque.
The VP-SDR ST will fit behind the stock primary cover with no modifications. It will be additionally available soon with larger weight design to provide increased clamping force overall (when used with 1/4" primary cover spacer).
It is available in two versions - the VP-SDR ST and VP-SDR ST high performance kit. The kit ships with a VP wear shim and mounting hardware. It requires the removal of the primary cover for installation. Options include AIM Corp.'s high performance spring setup for a torque capacity of around 150+ ft-lbs of torque.
AIM CORP.