Hinson Clutches are championship proven by almost every major factory team and rider in the world, including Eli Tomac, Ken Roczen, Cooper Webb, Tim Gajser, Jeffrey Herlings, Jeremy Seewer, Chase Sexton, and Joey Savatgy. Tested and raced with all the same high-quality standards as all Hinson Clutch Components. High production tolerances to perfectly mate Hinson Clutch Basket, enhancing clutch basket and plate life. Manufactured in Japan using high quality aluminum base plate and paper or cork friction material. Sold as a set.