Shimano Dura-Ace R9270 Road Disc Brake Caliper – Front With an all-new design, Dura-Ace BR-R9270 hydraulic disc calipers are the most compact yet. Monobody construction ensures light weight and rigidity, proving that good things can come in small packages. With an all-new Monobody construction design, high-performance braking has reached a new peak. The BR-R9270 caliper drops weight while also providing increased pad clearance, ensuring a quieter ride. Lastly, a new bleeding process makes maintenance easier than ever. FEATURES: One-piece structure maximizes stiffness and reduces weight 10% wider pad clearance decreases the chance of rotor rub Maintenance-friendly bleeding process Weight: 120g