Soft compound with silent braking from friction coefficient enhancers and tailored resinsBest for riders who brake late and hard, ceramic particles offer a high initial bite for precision brakingKevlar fibers provide wear and temperature resistance42Sram Apex 1, CX1, Force 1, Force 22, Rival 1, Rival 22, Red 22, Red eTap HRD 11s, Red AXS HRD (1st Gen 1pc Caliper), S700, S900 HRD, Level TLM, Level UltimateOrganicQuietGreenSinterUPC/EAN/GTIN: 3838835446888