Shimano Dura Ace di2 st-r9270 hydraulic control - 2x12v

With the fastest wireless shifting on the market and even more precise brake modulation, DURA-ACE raises Lperformance bar

The all-new ergonomics of the DURA-ACE ST-R9270 dual control levers offer new levels of comfort and control for road cycling. Now, with Servo Wave Action brake technology, the new DURA-ACE ST-R9270 brake lever offers unprecedented levels of modulation and control. The wireless shifting ensures a clean aesthetic to the bike, while offering the fastest and most precise shifting available on the market.

Features

Clean cockpit: wireless connection improves Laesthetics of the bike and guarantees lightning-fast shifting.
Unparalleled ergonomics, refined with feedback from professionals.
The raised handguard improves Lergonomics, and the elongated body of the hand guard increases support for the hands.
Optimized modulation thanks to a larger braking control area.
Carbon fiber lever and titanium structure.
Compatible with cable connection (for e-bike applications).
Easily change the function of the buttons with L'E-TUBE app.
Series: DURA-ACE R9200.
Actual weight (pair): 350 g.

Technologies

Servo Wave Action
When you operate the SERVOWAVE brake lever, the initial cable retraction is rapid, so a small movement of the lever is sufficient to bring the pads into contact with the disc brake rotor. Then the power multiplication factor increases rapidly at pad-to-rim contact, so greater lever travel is used to apply more braking power with higher levels of control.

Reach Adjust
The brake lever is equipped with a mechanism for adjusting the travel. The distance between the handlebar grip and the lever can be adjusted to suit any size hand and the rider's individual style and preferences.

DCL
DCL stands for Dual Control Lever. The lever performs braking and shifting functions and is easy and intuitive to use.
LErgonomic innovation is central to the higher standards of Dura-Ace performance compared to additional gears. The new internal gear mechanisms owe their robustness to MTB technologies, and are so efficient that it is possible to change gears or chainrings with the simple touch of a finger. In fact, LThe shifting action represents the final fulfillment of the Shimano Total Integration philosophy and only those L'has tried it can understand the advantages.
The DURA-ACE/ULTEGRA/105 Dual Control Lever shifters have an optimized structure with features such as a lightened pivot section on the internal side of the shift unit and the integral shift cable to lighten the steering. The numerous components have been made so compact and precise to guarantee unprecedented performance at high speeds.