2021

This compression tool will allow you to change weights in your STM primary clutch without removing it from the crank. Simply remove the belt and clutch bolt, screw in the thread rod with the plastic cup and tighten the nut to collapse the sheaves...

Fastener kit comes with the following hardware:Supplied per arm: 2   - 7 gram tungsten inserts  16 - 1 gram washers  4   - O-rings  8  - M3 x 6 long screws  2  - set screws  Supplied per kit...

Bearing Bolt for the STM Pneumatic Primary Lock Up clutch   

  Rage 3 Wide Captured Pin Primary Clutch  Completely redesigned STM Rage 3WCP  Primary clutch features a wider, thicker, more durable spider with our new composite spider roller bushings for long life. The new design...

Pin roller kit for 4 and 8 arm spider.  NOT FOR USE IN 3VL PRIMARY CLUTCHES! for 3vl pin roller kits please Click Here  This kit includes new buttons, rollers with composite style bushings, pins and washers. Works with all STM Rage 4 & 8...

Screw-on spider shim .06 thick. Fits 30 and 35mm taper.

Replacement primary M14 retaining washer and steel wedge lock washer (91074A134) for STM primary clutches purchased on or after 2/25/2020 for Polaris RS1, XP-turbo and Pro all models 

Pin roller kit for STM HD Rage 4 and 8 arm spider.  This kit includes: 4- 1001634 - .610 Rollers 8- 1001544 Bushings 4- M10 x 28mm Dowel Pin 8- 1001146 .218 Rebuild buttons Works with STM HD Rage 4 & 8 spiders.

STM Tuner Secondary Base Tool will sit on your bench and works great for removing and installing the helix and spring along with changing belt deflection.

Bearing Base for the STM Pneumatic Primary Lock Up clutch   

STM HD ATV secondary clutch spring - dark green  2 1/2" load 165 lbs. 1 1/4" load 280 lbs. Requires HD spring cap part number 1001009

Screw-on spider shim .03 thick. Fits 30 and 35mm taper.