The Straightline Performance Billet Adjustable Weight Kit delivers industry-leading clutch tuning flexibility with an adjustable range of 78–80 grams and up to 102 grams using optional tungsten washers. Precision-machined from billet material, heat-treated to exact specifications, and finished with durable yellow zinc plating, this complete tuning system allows riders to accurately dial in RPM, optimize clutch calibration, and maximize performance for high-horsepower, turbocharged, and performance-oriented snowmobile applications.