RS-1

STM Torsion spring cover option. Allows the use of a torsion spring with the option of 7 spring load adjustments with one spring. No drilling or modifications to the STM Secondary is needed. Does not...

Adjustment nut thrust washer.

Bushing Retaining Clip.

Replacement button for the STM Gen 1 ATV tuner secondary and the STM Gen 2 snowmobile tuner secondary. This button replaces the roller.  Sold individually.

STM Torsional Spring cover    Fits    All STM Gen 2 snowmobile tuner secondary's that use a torsion spring    All STM Gen 1 ATV Tuner secondary's that use the outer belt deflection adjustment...

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 

  These SUPERTIP Cam Arms are not recommended at RPM ranges above 9000 RPM  Our fastener kit comes with the following hardware; Qty supplied per arm  2  -  Tungsten Inserts - 7 grams  16 -...

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. 

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...

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

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...