AWE&reg; White Cassette Road Brake Blocks Grey/Orange/White 55mm Made From Extra Lightweight Alloy 7075, Triple Contour Design, Lightweight Alloy Cassette Unique Non Squeal Compound Reduces Noise And Increases Braking Performance, Limit Lines Indicate When A replacement Pad Is Needed Compatible with Shimano, Sram, Tektro and all other major braking systems Water Removal Channel & Mud Clean Designed Pad, Low Weight 15g Per Brake Suitable For Steel Or Alloy Rims, Fitting Instructions Attached, EN14781 Certified