Review from
Cycling Plus
Shimano has been using 'U' shaped castings for some time on Ultegra and Dura-Ace callipers but the new ones are pared down even more making them a full 136g lighter than a pair of dual pivot centaur callipers...brake blocks are of the cartridge type so worn blocks sre easy to change without disturbing the tow-in setting...the new brakjes have slightly better outright stopping power than thier predecessor and indeed any of campag's brakes.
In conclusion...
Expensive but light callipers
Rating: 7/10