The new Dura-Ace BR-9000 brakes reduce their optimized design with symmetrically arranged double joint and dual bearing in the axes of rotation friction, increasing at the same time the efficiency and controllability.
The brake arms of the Dura Ace 9000 are shorter than the previous group Dura Ace 7900. Compared with the BR-7900 is the braking performance of the Dura Ace 9000 increased by 10 percent, according to Shimano.
Material: aluminum, magnesium, titanium
Technology: SLR EV Dual Pivot
Compatibility: SLR EV compatible switching lever (Shimano ST-9000, ST-6800, ST5800)
Max. Tire Size: 25C
Rim Width: 19-28 mm
Colour: black / gray, silver
Weight: about 148g (a brake)