K05S-RX Disc Brake Pads Provides 50% more wear resistance than previous model (K03S). Compatible with 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 conditions. Item Specifications: Backing Plate Material: Steel, Compound: Resin, Heat Sink: No, Pad Shape Number: 59, keyword search: k03s, keyword search: ko3s,