Shimano Dura Ace Di2 ST-R9270 2x12S hydraulic shift levers

With fastest wireless shifting available and even more precise brake modulation, DURA-ACE redefines performance

Now featuring SERVO WAVE ACTION brake technology, the new DURA-ACE ST-R9270 brake lever delivers modulation and control like never before. Wireless shifting keeps your bike looking clean while offering fastest, most precise gear changes available. All of this resides in a Dual Control Lever to employs the most advanced materials to offer light weight and refined ergonomics that provide comfort and control for the most demanding conditions.

Features

• Clean Cockpit: Wireless connection enhances the aesthetic of your bike while keeping shifting lightning fast.
• Unparalleled ergonomics engineering refined with pro rider feedback.
• Carbon fiber brake lever and titanium hardware.
• Compatible with wired connection (for e-bike application).
• Easily change button function with the E-TUBE app.
• Series: DURA-ACE R9200.
• Real weight (pair): 350 g.

Technologies

Servo Wave Action
When you pull a SERVOWAVE brake lever, initial pad travel is fast, so little lever movement is needed to bring the pads into contact with the rotor. The power multiplication factor then increases rapidly at the pad-to-rim contact so more of the lever stroke is used to apply greater braking power with improved control.

Reach Adjust
Brake lever is equipped with a reach adjust mechanism. The distance from handlebar grip to lever can be adjusted to suit any hand size, type of riding and individual rider preferences.

DCL
DCL stands for Dual Control Lever. It has brake and shifting functions in the system and enables easy operation.
Ergonomic innovation is probably more critical to the higher standard performance than the added gearing. The shift internals borrow the robustness from MTB technology and are so smooth and effortless that one finger shifts front and rear are possible. Indeed, shifting is the ultimate act of SHIMANO TOTAL INTEGRATION, and simply has to be experienced to be understood.
The DURA-ACE/ULTEGRA/105 Dual Control Lever have an optimized structure with features that include the lighter weight pivot section in the near side of the shifting unit and the integral shifting cable for lighter steering. Its many component parts are made so compact and precise to achieve unprecedented high-speed performance.