X3 (all models)

Replacement roller for the STM snowmobile Gen 1 roller covers, Arctic Cat roller covers and the Gen 1 ATV tuner secondary clutches. 

TRA spring spacer for the STM Rage primary clutch. These spacers go in each end of the TRA spring to protect the cover and spider from spring damage.

Available in 50 and 60 gram base with the capability of adding 32 grams per arm for adjustment. 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...

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

2610 bushing and VH181 Snap Ring 

The 2408 bushing is a replacement bushing for some STM tuner secondary movable sheave applications. Use with clip VH175 (purchase separately) per application.

1816 bushing includes VH131 retaining clip

Bushing and retaining clip.

STM HD compression spring helix cover to be used with the KSS style springs, works with HXATV , HXATVG2 and HXSM2S helix's.  ONLY works on secondary's with a 1.500" diameter post.    Comes complete with  Qty 1 - 2408 Bushing for 1...

STM Rage 4 and 8 ATV cover complete with bushing (Part# 1810.59 with retaining clip). 

Our billet cover is a rigid design made from 6061 aircraft aluminum. This design captures the towers of the movable sheave and helps stop them from spreading.  Our billet cover also allows the use of the Ski-Doo TRA springs which offers a...

For the STM Rage 4 and 8 HD primary clutch only. This cover comes complete with bushing and snap ring.   Fits  STM Rage HD primary's 8-3/4" - 9-1/2" diameters