Race ready, silent power. Swissstop RS disc pads offer a highly balanced combination of predictable braking, duability and incredibly low noise in all conditions. The organic compound gives smooth modulation and is rotor friendly. High quality springs are supplied with every set of Swissstop disc brake pads Supplied as pairs (for one wheel).Disc 34 Fits: Shimano Dura Ace BR-R9170, BR-RS805, BRRS505, BR-RS405, BR-RS305Disc 32 Fits: SRAM HRD, eTap HRD, Level Ultimate, Level TLMDisc 30 Fits: Magura MT 2, 4, 6, 8 Campagnolo Road DiscDisc 28 Fits: Shimano XTR BR-M9000, BR-M9020, BR-M987, XT BR-M8000, BR-M785, SLX BR-M675, BRM666 FSA K-Force DB-TX-9000, Afterburner DB-TX-9150, REVER MCX1