2018

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) 

  40 Gram Base 3-Arm 40ATVX-3.5-3 (3.5 radius)  40 Gram Base 4-Arm 40ATVX-3.5-4 (3.5 radius) 45 Gram base 3-Arm 45ATVX3 is designed specifically for the STM Rage 3 only. 45 Gram base 6-arm 45ATVX-3 45 Gram base 8-arm 45ATVX-4 50 Gram base...

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...

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 :  1 -...

Fastner 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 :  1 - 222...

ATV Gen1 helix fits our STM Gen 1 ATV secondary's   If you need a reverse or opposite rotation helix see 99HXXP

A heavy duty tool (also known as the grunt tool) that allows you to remove and install your spider. It will work on the primary clutch cover as well to hold it from turning while torqueing the clutch bolt. This tool works on all STM Rage 3 & 6...

Click here to order parts from a clickable parts breakdown!  To take full advantage of an optimal set up we suggest using the STM driven along with the Rage3P.   This clutch offers extremely smooth low engagement...

 To take full advantage of an optimal set up we suggest using the STM driven along with the Rage 3RS.   This clutch offers Strong Torque and works best for heavy throttle, race like or wide open conditions for the...

A heavy duty tool (also known as the grunt tool) that allows you to remove and install your spider. It will work on the primary clutch cover as well to hold it from turning while torquing the clutch bolt. This tool works on all STM Rage 4 & 8...

Used for removing the spider nut from the screw-on all STM clutches and 1995 thru 2009 and 2016 team Arctic Cat primary clutches.  Fits ALL Screw-on style STM clutches regardless of year. Replaces 1001072 STM & Arctic Cat Spider Nut Socket...