2025

This is the primary clutch cover only. Made from billet 6061 aluminium, comes with bushing and snap ring installed.  This cover is designed for the STM Rage 3 "Wide" primary. 

Replacement Billet Movable sheave for the STM Rage4 Primary for Polaris Pro R - 4 Cylinder models  includes bushing & retaining bolts (Part # 4016-qty1 / 8-32 x 1/4"BHCS-qty 2)

All billet design, uses the STM Gen 1 ATV style helixes   Can be used the the stock primary or the billet Rage primary Uses OEM or OEM replacement belts Includes hub insert and new retaining bolt.  Includes an adjuster nut tool to change...

ATV Primary Fixed Sheave comes with fixed sheave part# 2001302 and post part# 2001301 assembled  5/8"-18 tapped puller threads   

WILL NOT FIT UNDER OEM STOCK CLUTCH HOUSING COVER   Works ONLY with STM Rage primary part number 2001333 Parts included  Qty 1: Adjuster Nut - 1001171 Qty 1: Screw-on Quick Adjust Base - 2001346 Qty 1: Adjuster Nut Tool -...

MAXXX Tuner Secondary Button 

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

For use with adjuster nut Sku: 1001717

ATV Primary Fixed Sheave comes with fixed sheave part# 2001325 and post part# 2001324 assembled  This is a replacement part for the STM Rage 3WCP for the 2022 Polaris Ranger XP1000 Northstar Ultimate Trailboos models from febuary 1st, 2022...

Turner adjustment nut with 1/4"-20 tapped holes to use a bolt to open the secondary while leaving the adjust nut in place. Must be used with adjuster nut washer Sku: 1001716

Set of 2 screws 8-32 x 1/4" BHCS

Secondary Retaining Bolt and lock washer  Fits Polaris Pro R STM Tied Clutch Brace