These Sram Guide Brake Pads are made for the SRAM mountain bike guide brakes. Using SRAMs extensive bicycle knowledge you know it’s going to be a product you can trust. Brake pad options include metal sintered with steel backing, organic with steel backing, or organic with aluminium backing. Sram Guide Brake Pads Features Options include metal scintered with steel backing, organic with steel backing, or organic with aluminum backing Suitable for SRAMGuide and Avid Trail disc brakes