Maverick X3 /X3 Max

Screw-on HD spider shim .03 thick. Fits STM 30, 33 and 35mm primary clutch with 1.875" dia post   Old part number - 25-30-35-HD-SO-03

Screw-on spider shim .03 thick. Fits 30 and 35mm taper.

Screw-on spider shim .06 thick. Fits 30 and 35mm taper.

.030" thick belt shim for stm primary clutches with a 1.875" dia post. Sold individually            MH 3-3-20

30mm screw-on belt shim .03 thick.  Sold individually.

Nylon spacer goes between the spring and helix cap to prevent wear. Use with KSS style springs and HD compression spring helix cover #1001067 and Cf-Moto secondary clutches 

Turner adjustment nut.

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 &...