Whether for replacement of a lesser, broken caliper, or an upgrade to legendary Ultegra, this ultra-light, super responsive Ultegra 6600 rear brake is designed for smooth, decisive breaking and controlled slowing. Reducing overbreaking can mean the difference between podium and no podium, so get some breaks that will keep you at the speed you want to be during curvy or descending stages of the race, and then stop you on a dime if the need emerges.
SLR dual pivot design with thrust bearing provides instant response for braking and releasing
Forged aluminum arms are strong and ultra light
Convex washer, brake pad angle system and spring tension adjustment for finest tuning capability
Resin bumper tire guide protects rim when shoes wear down
Includes Q/R, barrel adjuster, and R55C2 cartridge brake pads