What type of brake pad compound comes stock with SRAM RED and Force eTap AXS HRD disc brakes? SRAM USA May 23, 2019 20:19 Updated Organic. Related articles What disc brake pad compound options does SRAM offer for SRAM RED and Force eTap AXS HRD brakes? What type of brake pads are required for SRAM eTap AXS HRD road disc brakes? What size disc brake rotors does SRAM recommend for eTap AXS HRD? Are 11-speed SRAM RED eTap derailleur batteries compatible with SRAM RED and Force eTap AXS derailleurs? Can I use a bike built with RED or Force eTap AXS™ on my direct drive 11-speed trainer? Comments 0 comments Article is closed for comments.