STM Evoluzione Dry Slipper Clutch For Ducati's

Evoluzione Slipper Clutch

The Infamous Evoluzione Slipper Clutch has been used for more than 20 years in racing and now you can get it too!

Includes 2-Piece Hub with 35 Degree Ramps Progressive Engagement Plate Pressure Plate 90mm Clutch Diaphragm Spring, Mounting Hardware, 48 tooth Clutch Plates, and Red Clutch Basket.

NOTE: Tool UTL-0020 is Required to Properly Torque this clutch

How the springs work:

The primary and secondary springs are mounted in such a way as to guarantee a preload which generates an initial resilient spring force.

How the primary spring works:

When the lever is actuated, the preloading position of the primary spring is varied and reduced. The spring returns an elastic force of contrast to the action of the lever.

How the secondary spring works:

The torque generated by the rear wheel tends to raise the drum. The secondary spring is compressed with respect to the initial resting position and generates an elastic contrast force.

All STM clutches and parts are machined and assembled in-house at the STM facility located in Chieri, Italy. Constructed from the highest grade raw materials - CNC machined to the tightest tolerances and hard coated to ensure product longevity.

STM clutches have the ability to be adjusted (tuned) to riders' needs through the use of different weight primary and secondary clutch springs.