Now equipped with SERVO WAVE braking technology, the Shimano Dura Ace Di2 ST-R9270 brake lever with BR-R9270 caliper offers unparalleled modulation and control. Wireless shifting provides a clean look on the bike and allows for uniquely fast and precise shifting. All these features are integrated into a DUAL CONTROL shift/brake lever that is both lightweight and ergonomic thanks to the use of state-of-the-art materials ensuring optimum comfort and control even under challenging conditions.
THE SCIENCE OF SPEED: Shimano Dura Ace Di2 12-speed STI Dual Control ST-R9270 + BR-R9270 Disc Brake
Shimano has been working for years to provide you with an advantage of seconds. The new 12-speed DURA-ACE R9200 is the fastest groupset ever and the pinnacle of SHIMANO technology and innovation. Speed was the key driver for the development of this new generation road groupset. That's why every component has been revised, refined and optimised to make you even faster - whether to leave the peloton behind you or to win the final sprint on the Champs-Élysées.
The hydraulic 2-piston brake caliper BR-R9270 for with Flat-Mount and L03A Resin disc pads with fin. The completely newly developed hydraulic disc brakes provide an unprecedented combination of braking power and controllability. With the brand new monobloc design, the peak of high braking performance has now been reached. The lighter BR-R9270 caliper offers wider pad spacing and reduces noise levels. Finally, a new bleeding system makes maintenance easier than ever before.