Shimano ultegra 6810 direct mount brake caliperthe ultegra aero brake has direct mount options for fork front and chainstay rear and claims for increased modulation ultegra components offer an ideal balance of light weight and stiffness making it the perfect choice for both enthusiast and competitive ridersfeatureslow profile aerodynamic direct mount super slr ev dual pivot design provides superior brake performance and light actionmust be used in conjunction with super slr levers for cor