2017

Assembly includes post and fixed sheave.

Not designed for the average user. Cam arms sold separately. Comes in screw-on spider option only.   Click here to order parts from a clickable parts breakdown -#2001261!

STM Tuner secondary bolt retaining washer Fits  2015 Polaris XP 900 2016 Ace 900 2015-18 Ranger XP900           MH3-16-20

STM Gen 2 tuner secondary replacement fixed sheave assembly. Includes rollers, pins, and pin screws sheave part# 2001048 post part# 2001008 Fits 2015 Polaris Xp900 2016 Ace 900 2015-18 Ranger 900     MH3-16-20

Replacement movable sheave for the Polaris STM Gen 2 Tuner secondary. 1.181 Bushing ID  Fits  Polaris  2010-13 RZR 800 2005-12 Sportsman 800 2013-18 Ranger xp900 2015 Xp900 2016 ACE 900   MH3-16-20

A non fixed bushing style arm incorporating our signature style of adjustability to offer the most tuning capabilities available. Each arm needs our 1001709 bushings for the 8mm Non fixed .470 wide pin style rage primary 

Replacement cover for Rage 4 WSP Pneumatic Primary.  Allows the use of part # 1001580 Pneumatic Clutch Cover Holding Tool.

ATV Primary Fixed Sheave Gen 2 comes with fixed sheave part# 2001080 and post part# 2001079

ONLY WORKS IN STM CLUTCHES  Sold each set. 1 pin and bushing set per arm is needed. Only for .470 wide cam arms with 8mm AXI 1001709 bushings.   Includes:  2 -  1001324 Inner bushings for 1/4" pins  2 -...

ONLY WORKS IN STM CLUTCHES  Sold each set. 1 pin and bushing set per arm is needed. Only for .470 wide cam arms with 8mm AXI 1001709 bushings.   Includes: 2 -  1001732 inner bushings for 8mm pins 2 -  1001328 outer washer...

ATV Movable Sheave Gen 2. Comes with bushing and bushing retainer installed.

Assembly includes post and fixed sheave.