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Easy does it.
Smoother, more responsive levers do little if the components they work with don't improve alongside them, so we weren't surprised to see Shimano revisiting its dual-pivot rim brake design while quietly overhauling Dura-Ace for this year. The resulting Dura-Ace BR-9100 Brake Calipers make their entrance boasting a new steel bridge between each caliper arm pivot, which reduces flex for more consistent braking power when you're slamming on the levers. The bridge contributes to the calipers' enhanced modulation and more fluid, linear behavior across the braking curve, working in tandem with the levers to provide responsive stopping power whether you need to lightly temper your speed or pull up quickly to miss a crash. On the aesthetics side, Shimano subtly reduced the gap between each arm to create sleeker lines that align with the rest of the groupset's classy styling.
- Dump speed with smooth, responsive braking power
- Steel stabilizer reduces chatter and flex during hard stops
- Predictable, consistent behavior across braking curve
- Closer arms create a more streamlined aesthetic
- Item #SHI00DP
- Q & A
- Familiarity: I've put it through the wringer
After upgrading to full DA 9100, this is the only piece that left me disappointed. The rear brake squeals after finagling, toeing in to different degrees, re-adjusting, etc. etc. The same issue exists with multiple wheel sets, and never was a problem with 2 different versions of Ultegra brakes prior. Aside from the noise issue, they also do not stay centered after hard use, and I have to continue to unscrew the centering bolt and re-adjust. Maybe they are X% stiffer and brake X% more powerful than the previous version of DA, but the new design seems to have sacrificed other qualities unfortunately.
Second to None
The previous generation BR-9000 brakes were already the benchmark for the entire industry, and somehow Shimano has improved on it. They have added a steel bridge that stiffens the caliper further. There is no better brake out there on the market for power or modulation. Not officially compatible with SRAM or Campagnolo as Shimano uses a different pull ratio, but there are plenty of folks who run the setup with no ill effects
Do these brakes offer more clearance for wider (28mm+) tires than the 9000 brakes?
According to Shimano's website, you can fit 28c tires:
Can you run these brakes with Sram Red e tap ?
Yes, you certainly can! Please let me know if you have any questions on this or would like to place an order; I'd be happy to help you.