Shimano Dura Ace di2 st-r9270 Hydraulic Shift Lever - 2x12-Speed

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

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. Wireless shifting gives the bike a clean look while delivering the fastest and most precise shifting available on the market.

Features

Clean cockpit: wireless connectivity improves the bike's appearance and delivers lightning-fast shifting.
Unrivalled ergonomics, refined with feedback from professionals.
The raised hood improves ergonomics, and the elongated hood body increases hand support.
Optimised modulation thanks to a wider braking control range.
Carbon fibre lever and titanium construction.
Compatible with a wired connection (for e-bike applications).
Easily change button functions with the E-TUBE app.
Series: DURA-ACE R9200.
Actual weight (pair): 350 g.

Technologies

Servo Wave Action
When you operate the SERVOWAVE brake lever, initial cable take-up is fast, so only a small amount of lever travel is needed to bring the pads into contact with the disc brake rotor. The power multiplication factor then increases rapidly as the brake block contacts the rim, so more lever travel is used to apply greater braking power with higher levels of control.

Reach Adjust
The brake lever features a reach adjustment mechanism. The distance between the handlebar grip and the lever can be adjusted to suit hands of any size and the rider's individual style and preferences.

DCL
DCL stands for Dual Control Lever. The lever handles both braking and shifting and is easy and intuitive to use.
Ergonomic innovation is fundamental to the highest standards of Dura-Ace performance, beyond additional gears. The new internal shifting mechanisms owe their strength to MTB technologies and are so efficient that you can change gear or chainring with the touch of a finger. In fact, the shifting action is the ultimate expression of the Shimano Total Integration philosophy, and only those who have tried it can understand its benefits.
The DURA-ACE/ULTEGRA/105 Dual Control Lever shifters have an optimised structure with features such as a lighter pivot section on the inside of the shifting unit and an integrated gear cable to make steering lighter. The numerous components have been made so compact and precise that they deliver unprecedented performance at high speeds.

Founded in 1921 in Sakai, Japan, by Shozaburo Shimano, Shimano is still based in the same city today. For cyclists, it makes drivetrains, brakes, wheels, pedals and cycling shoes. Its history in bicycle components began with the production of freewheels in 1922.