These SRAM Guide/Avid Trail Steel Backed Sintered Compound Disc Brake Pads are compatible with SRAM X0, SRAM Guide, and Avid Trail disc brakes and offer better stopping power and a longer lifespan than the organic/resin alternatives. Put an end to those screeching brakes and regain control of your steed with these SRAM Sintered Disc Brake Pads.