2025

These are designed for the STM Rage 3VL 2016-2017 RZR XP-Turbo primary clutch. They have the capability adding 32 grams per arm for adjustment.  This design allows the option of adding large...

Primary clutch .125 spring shim spacer 

ATV Movable Sheave Gen 2 includes bushing and snap ring. Works only with Rage 3S and Rage 3P primary clutches.

Replacement bushings for the STM Supertip R-series weights and the P-series weights. These bushings get pressed in and reamed after installation. Reamers available as part # RMR in sizes .251, .248, ...

.075" thick spider shim  Fits  All STM ATV primary's with a Sleeved 2 way Bearing  All STM Primary's with a 1.875" diameter post    MH 3-3-20

Bolt sleeve for the STM Can-Am primary retaining bolts. 

Available in 45 gram base weight with the ability of adding 20 grams per arm for adjustment.  This design allows the option of adding weight to two different areas on one side of the cam arm to...

Four arm screw-on HD spider complete with rollers and buttons.  Works in STM Rage 4 HD primary 8-3/4" diameter or larger. Rebuild kit available: #1001651

This cover is designed for and only works with the STM Can-Am Rage 3P primary. 

ATV spider shim .060.   supercedes or replaces C166597.

For use with secondary part#'s 4001050 3001065

These set screws are to adjust the tuck of the primary cam arms in the STM Rage primary clutches with the engagement set screw holes. Works for rage 3, dual stage rage 6, rage 4 and 8 arm clutches...