What disc brake pad compound options do you offer for Rival eTap AXS HRD brakes? We offer both organic and metal sintered pad compounds for disc brakes. See the "Recommended Road Rotor Size and Brake Pad Chart" in the eTap AXS Systems Manual for recommendations based on riding style and system weight. Related articles What type of brake pads are required for SRAM eTap AXS HRD road disc brakes? How do I know which flat mount caliper adapters to use with Rival eTap AXS? Are there Rival eTap AXS rim brake and disc brake options? What size rotors can I use with Rival eTap AXS? What cassette size ranges do you offer for Rival eTap AXS?