The shimano ultegra r8010 direct mount brake caliper components offer an ideal balance of light weight and stiffness making it the perfect choice for both enthusiast and competitive riders shimano ultegra r8010 direct mount brake caliper features low profile aerodynamic direct mount super slr ev dual pivot design provides superior brake performance and light action must be used in conjunction with super slr levers for correct leverage ratio enhanced brake arch proportions give a quicker l