Clarks Organic Disc Brake Pads For Shimano Xtr/Xt/Slx/M985/M785/M666/S700 AlfineOrganic VX Pads are specifically designed to give the best performance under normal conditions. The organic compound gives improved noise reduction as well as increased âbiteâ.Sintered VRX Pads are a harder compound pad with increased carbon content. Sintered pads are designed to deliver maximum performance under stress and extreme conditions. Consistent through sustained riding they are ideal for hydraulic brake systems.Competition VRS Pads are specifically engineered for competition riding: with an advanced pad compound comprising of Kevlar for high frictional properties high ceramic content for improved wet weather performance and a increased copper content for superior low speed braking characteristics. In addition a 'grooved' backing plate improves the airflow between the piston and the pad keeping the brake system cooler and performance consistent.CompatibilityClarks M1Clarks M2 (Serial No. L)Clarks M3Clarks CRS C2Clarks CHM-08Clarks CMD-22Clarks CMD-22FMShimano Deore M615Shimano Deore XTShimano XT M785Shimano XTRShimano XTR M965Shimano XTR M975Shimano XTR M985Shimano XTR M988Shimano New XTRShimano R785Shimano SLXShimano SLX M666Shimano SLX M675Shimano S700Shimano S700 AlfineShimano Alfine