Cooler brakes stop more reliably, and Shimano's L04C Metallic Disc Brake Pads use both cooling Ice Technology and metal construction to provide the highest all-around stopping power in Shimano's line. On their own, the metal pads display reliable, high stopping power in wet or dry conditions, demonstrating consistently better durability over repetitive use than their resin counterparts. These pads are compatible with Shimano's 2-piston gravel calipers as well as GRX road setups.