EBC SR-21 sintered race brake pads are a racing compound available in configurations that fit Alcon H‑Type calipers and others. This listing references 16mm thickness for the SR-21 and compatibility with AP Racing CP4567/CP5040-10/CP5100/CP5567/CP6561/CP6760 as well as certain K‑Sport four-pot rear fitments and specific rotor sizes. These pads are intended for dedicated racing applications where sintered materials are required.
EBC Racing Alcon H-Type RC4463/42 SR-21 Sintered Race Brake Pads