Cork Material Clutch Friction give you an excellent Cost-Performance.. Cork is used current big motorcycle such as for Yamaha R1.. Material for clutch friction will be decided by performance of clutch operation. Vesrah friction disc sets are manufactured from top-grade materials that meet or exceed OEM standards. Each disc set includes friction plates only. * NOTE: Most disc set package quantities match OEM quantity requirements. However, to simplify our line we have eliminated some less popular package quantities and substituted sets with a greater number of discs. Please notice package quantity when checking prices.This item fits the following vehicle applications:for Honda XR650R 2000-2007