SUITS SRAM GUIDE AND AVID TRAIL BRAKESDesigned to fit Guide and Trail calipersBRAND COMPATIBILITY:SRAM/AVIDMODEL COMPATIBILITY:SRAM/AVID 7 TRAIL; SRAM/AVID 9 TRAIL;SRAM/AVID GUIDE R; SRAM/AVID GUIDE RS; SRAM/AVID GUIDE RSC; SRAM/AVID GUIDE ULTIMATE; SRAM/AVID X0 TRAILCOMPOUND:RESIN / ORGANICBACKING PLATE:STEEL