Shimano ultegra r8070 disc brakethe shimano ultegra r8070 disc brake provides exceptional braking control so you can enjoy supreme braking performance in all weather conditions the sleek aerodynamic design weighing in at 280 grams for the pair integrates seamlessly with your bikes clean lines and allows you to tackle fast descents and hairpin turns with confidence featuresmaterialaluminium inner steel braking surfacetypehydraulic disc brakeattachment typeflat mountrecommended