Barnett Clutch Kit: Barnett clutch kits are designed to tolerate whatever you can deliver with their top quality construction and components. Barnett has been developing their burly clutch kits since 1948 for dirt bikes, street bikes, and ATVs. The heavy duty clutch springs have also been produced for durability by using shot-peened processing and heat treating. Expect better clutch feel, performance and abuse control when you install the Barnett clutch kit in your application. Carbon Fiber Friction Plates: Carbon fiber segmented friction plates are extremely durable and heat tolerant. A high static and dynamic coefficient of friction provides a smooth positive engagement and release. Will not contaminate the oil. Compatible with stock steel drive plates, springs and all oils. If you are extremely hard on your clutch, these are the plates for you.