Cam arm/Clutch Weights

These spacers are designed to allow our STM Supertip Yamaha Cam Arms to be utilized in the stock ADAPT style primary clutches    A complete set needed for 1 clutch would be 6 

Supertip RN Series "Raised Notch" Notched Drag Race Cam Arms Allows for the use of more spider shimming than our traditional Notched style cam arms. The Notched is raised in the profile to keep the roller deep in the notch when using more spider shims...

Replacements for spiders that came with these HD arms. Arms are sold individually and come with bushing already installed. HD 1st stage M5 fastener kit required with these arms and is sold separately.  These Cam Arms are not recommended at RPM...

Each arm weighs 25 grams and has 2 places to add weight for more tunability. The ramp design keeps the arms engaged for a longer duration putting more belt force further into the shift. Price is per arm sold individually. A Gen 2 deep-grooved spider...

Made specifically for higher engagement aggressive drag racing applications with an all new flatter profile specifically for turbo models. Made with a healthy engagement notch. The notched arms were designed for the Rage primary and will...

  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 - Washers - 1 gram...

Supertip X Series Notched Drag Race Cam Arms

These cam arms were specifically designed for the Z1 Turbo upgrade. This a new proven and tested design that is prefered by Z1 tuners. These arms have a large hump on the back that creates more engagement and more load when the turbo needs...

Made specifically for higher engagement aggressive drag racing applications. Made with a healthy engagement notch. The notched arms were designed for the Rage primary and will also fit Arctic Cat fixed pin primaries and have a set screw...

Available in 50, 60 and 72 gram increments 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...

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...

Set of 6 bushings only  **Updated part# from 37 BU Replacement bushings for the STM Supertip weights. This bushing will be required when running the 1/4" pins.  Use on 40, 50, and 60 gram weights for 1/4" pins.