・10% wider pad spacing reduces the risk of friction with the brake disc・Easier bleeding process for maintenanceFeaturesWith proven hydraulic braking technology, the new SHIMANO 105 calipers feature the SHIMANO Flat Mount system and its compact profile design ideal for road bikes. More compact and lighter than ever, the R7170 brakes offer wide clearance between pads and discs for easier wheel removal and less friction noise, as well as one-way bleeding for easy maintenance.