Shimano K05S-RX Disc Brake PadsFeatures-Provides 50% more wear resistance than previous model (K03S)-Compatible with Shimano Models: BR-M9100, BR-M9110, BR-M8110, BR-R9270, BR-R8170, BR-R9170, BR-R8070, BR-R7070, BR-4770, BR-RS805, BR-RS505, BR-RS405, BR-RS305, BR-U5000, BR-RX810, BR-RX400-Consistently smooth and quiet braking power-Designed for dry and wet conditionsItem Specifications-Backing Plate Material:Steel-Compound:Resin-Heat Sink:No-Pad Shape Number:59