ACE 900

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...

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...

Can only be used with STM Polaris and Can-Am ATV Rage 3 primary with bearing part #1001000.

.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

 Wildcat Wet Clutch Model STM Primary Replacement cover 

ATV Primary Fixed Sheave Gen 2 comes with fixed sheave part# 2001023 and post part# 2001024 This is the 8" dia. replacement sheave 

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

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

Assembly includes post and fixed sheave.

STM Gen 2 Tuner Secondary Finned Fixed Sheave Assembly comes with sheave part# 1001116  post part# 2001008 , rollers, pins, pin screws   Fits Polaris Models 2015 XP900 2016 Ace 2015-2019 Ranger XP900            ...