Straightline Performance’s fully adjustable clutch kits will drastically improve the acceleration and holeshot of your stock, or modified machine
Yamaha SR Viper adjustable weight clutch kits:
Complete drop-in clutch kit for the Yamaha SR Viper machines.
Backshift is improved, and mph is increased
Includes an all new set of fully adjustable billet weights, Straightline Performance helix, and primary/secondary springs
R Viper kits include an all-new set of fully adjustable billet weights, Straightline Performance helix, complete Yamaha weight conversion kit, and primary/secondary springs
