

All new design for the New 4 Cylinder Engines from STM Powersports is here!
Stock replacement style clutch fits under stock clutch housing and uses a new supplied retaining bolt for installation.
Puller included for STM PRIMARY only.
Uses stock or stock replacement style belts.
The design is similar to our HD clutches from other machines that offer a spread cam arm pin diameter. This allows for more leverage through the cam arms and the ability to run most 5/16"pin style cam arms.
This clutch also incorporates a larger diameter 2 way bearing design for longer lifespan through use and smooth gear selection.
Can be used with the stock or STM billet Tuner secondary clutch.
Uses PS style springs with no spacer or PATV style springs with included spring spacer.
Different base weight cam arms available for stock to boosted applications.
Call 315-530-2512 or 315-623-2061
If you place your order online we will call you within 1-2 business days to obtain your machine setup / style of riding. Please make sure your contact information is accurate before checking out!