Upgrading our XC or trail bike with a quality set of brakes like the Hayes Dominion A2 SRL Disc Brake takes our riding to the next level. These powerful 2-piston brakes feature a precise and quick bite point and intuitive features like the tool-free reach adjustment and a flip-flop lever orientation. Installation is kept easy thanks to the dual-port bleed system to ensure proper performance, and the crosshair caliper alignment to help get our caliper centered. This set includes the Dominion A2 caliper, lever, hose, two sets of pads, and mounting hardware.