The 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 breaking characteristics. In addition a 'grooved' backing plate improves the airflow between the piston and the pad, keeping the brake system cooler and performance consistent. Compatible With: Hope Mono 4 Shimano XT M755 Shimano XT M756 Shimano XT M775