2 1/2" load 1 1/4" load

Available in 45 gram base weight with the ability of adding 20 grams per arm for adjustment.  This design allows the option of adding weight to two different areas on one side of the cam arm to create the shifting characteristics you desire. ...

This compression tool will allow you to change weights in your clutch without removing it from the crank. Simply remove the belt and clutch bolt, screw in the m14 x 1.5 thread rod with the plastic cup and tighten the nut to collapse the sheaves.

PS type springs

Spider retaining nut STM Rage Primary Clutches 

STM ATV helix cover to be used with the PS or KSS style springs. Original part#'s were 1001007 and 1001009 and has been updated to fit both HD and non-HD springs. 

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   -...

Can-Am Tuner Secondary STM Gen 2 Fixed sheave assembly includes sheave part# 3001020 and post part# 3001002 for the stock or STM Rage 3S primary offset tuners only. includes rollers part# 1001008

ATV Primary Fixed Sheave Gen 2 contains fixed sheave part# 3001010 and post part# 3001004 assembled. This sheave is only for the 3S or 3P Can-Am options.

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...

New improved two-way bearing design. The main shaft bearing is now smaller with a 47mm outside diameter allowing a lower initial takeoff ratio than our past design. Allows tighter belt deflection and smoother transmission shifting. Click here to order...

Replacement sheave for the Can-Am STM Tuner Secondary Gen 2. Includes bushing and bushing retaining clip installed.