2023

STM Rage 4 and 8 ATV cover complete with bushing (Part# 1810.59 with retaining clip). 

This is the updated replacement part for part# 1001015. Made from forged 7075. Comes assembled complete with rollers and buttons.  Rollers and buttons are replaceable.  We also have a grunt (spider) tool that can be purchased separately...

Our billet cover is a rigid design made from 6061 aircraft aluminum. This design captures the towers of the movable sheave and helps stop them from spreading.  Our billet cover also allows the use of the Ski-Doo TRA springs which offers a...

For the STM Rage 4 and 8 HD primary clutch only. This cover comes complete with bushing and snap ring.   Fits  STM Rage HD primary's 8-3/4" - 9-1/2" diameters 

STM clutch support brace designed to tie the primary and secondary together to prevent shaft flexing for improved performance and belt life.   

The Newest addition to our Rage3 line of primary clutches The Rage 3-RA is an STM primary designed with the stock offset allowing it to be used with the stock secondary. To take full advantage of an optimal setup we...

NON-FIXED PIN Fastener kit comes with the following hardware: This kit is for Cam Arm that utilize bushings to pivot on the pin kits  Fastener kit comes with the following hardware:Supplied per arm: 2   - 7 gram tungsten...

NON-FIXED PIN Fastener kit comes with the following hardware: This kit is for Cam Arm that utilize bushings to pivot on the pin kits  Supplied per arm: 2   - 7 gram tungsten inserts  16 - 1 gram washers  4   -...

This design allows the option of adding large quantity of weight to three different areas on both sides of the cam arm to create the shifting characteristics you desire. Each arm can be assembled with tungsten and steel washers that can be used in...

STM clutch support brace designed to tie the primary and secondary together to prevent shaft flexing for improved performance and belt life.   

ATV Gen 2 helix fits our STM Gen 2 ATV secondarys (3-roller Design) 

Qty 1 .570 wide Replacement bushing for the STM Supertip cam arm . will require reaming after press  Fits  STM  Supertip Yamaha Y, YS, YX and YXE style cam arms that fit the stock 8mm pins.  (Ream after press .316 reamer is...