These ceramic brake pads are compatible with Avid Code R 2011 - 2014, compatible with SRAM Code, Guide RE 2011+. Use on front or rear brakes, reduce scraping grooves on the brake disc, stable friction performance and lower wear, effectively protect the brake disc and prolong the life of the brake disc. Ceramic brake pads ensure low noise, maximum stopping power, control and durability. For all types of weather. Please check the size and appearance of the brake pads in your photos to see if they are suitable for your vehicle before purchasing. When the bike is ridden normally, the brake pads wear out and require regular inspection and replacement. It is recommended to replace it within 3-6 months. Dimensions 40x28x4mm Material Ceramic .