New caliper design is stiffer for more power than 6600
New brake shoe compound improves wet weather performance
Dura Ace quality with out the cost
Front brake only
Warranty: 2 years
Made in Japan
Shimano part # IBR6700AF78X
The Ultegra 6700 brakes are premium stoppers. Forget about the fact that they don't say Dura Ace on them, the difference between them comes down to price and whether you like dark or light grey. Both front and rear calipers have the same shape and CNC work as the 7900 models, so you get incredible stopping performance and increased caliper stiffness. The new brakes also include Shimano's new brake shoe compound which increases wet weather performance. As a pair the calipers weigh 314 grams, so weight isn't a factor at all. If you are ready to step up to Dura Ace technology without paying for it, Ultegra 6700 will make that happen.