This Straightline Performance Billet Adjustable Weight Kit is a set of three precision-machined clutch weights for snowmobile CVT tuning, each heat-treated to optimal hardness and finished with yellow zinc plating for corrosion resistance. The set-screw adjustment system lets you change weight mass without buying multiple weight sets, so you can compensate for elevation, modifications, or riding style while holding your target RPM.

The kit adjusts from 78 to 80 grams out of the box, and with the optional tungsten washer kit it reaches up to 102 grams, making it suitable for turbocharged and high-horsepower builds. The package includes three weights, the set-screw adjustment system, tuning hardware, weight adjustment components, and complete tuning instructions.