The shimano ultegra 6810 direct mount brake caliper offers a great balance between lightweight and performance making ultegra 6810 the perfect choice for both enthusiast and competitive riders its low profile aerodynamic direct mount super slr ev dual pivot design in conjunction with a super slr lever for the correct leverage ratio provides superior brake performance and light action unlike the 6800 brakes the 6810 are a direct mount brake which bolts straight to the frame in a 2 bolt rath