EXOTherm2 combines an extremely durable, smooth modulating pad compound with a cooling fin equipped back plate which provides consistent, powerful braking in all conditions. - The EXOTherm2 technology is SwissStop's maximum pad life compound that also offers minimum brake fade - Organic compound provides a low pad wear rate - Aluminum backing plate is equipped with cooling fins for heat dissipation and is lightweight - Smooth, consistent brake performance - Compatible with SRAM HRD, eTap HRD and Road AXS HRD. Will NOT fit SRAM Level Ultimate or Level TLM