The Straightline Performance Notched P-Drive Adjustable Weight Kit is a premium billet clutch weight system for Ski-Doo and Lynx P-Drive primary clutches. The kit includes three precision CNC-machined adjustable weights with all tuning hardware, allowing adjustment from 48 to 56 grams right out of the box. Optional tungsten inserts expand the tuning range beyond 60 grams, making this the ultimate clutch weight system for trail riding, cross-country racing, snowcross, and high-performance applications. Finished in durable yellow zinc plating and backed by Straightline Performance tuning support, these weights deliver unmatched adjustability, durability, and clutch performance