Shimano Dura-Ace Di2 ST-R9170 2×11-Speed Shifters

The ST-R9170 Dual Control Levers represent the definitive 11-speed generation of Shimano’s wireless-ready electronic shifting combined with hydraulic disc braking. Built on the highly successful R9100 series platform, these shifters were the first to perfectly balance a slim, ergonomic hood shape with the internal volume required for a hydraulic reservoir. Unlike the newer 12-speed versions, the R9170 utilizes a fully wired E-Tube connection to the battery and derailleurs, ensuring rock-solid signal reliability and a never-ending battery life compared to wireless alternatives. Featuring carbon fiber lever blades and a highly tunable "Reach Adjust" and "Free Stroke" adjustment, these shifters offer a personalized, professional-grade cockpit experience for the most demanding road and cyclocross riders.

Key Features

• Compact Ergonomics: Despite housing a hydraulic reservoir, the hood profile remains remarkably slim and similar to mechanical shifters for better hand wrap.

• Wired Di2 Reliability: A direct E-Tube connection provides instantaneous shifting and centralized battery management for the entire system.

• Synchro Shift Compatible: Fully programmable via the E-Tube Project app to allow for semi-synchronized or fully synchronized front and rear shifting.

• Carbon Fiber Construction: Lightweight and rigid carbon fiber lever blades provide a premium tactile feel and exceptional braking power.

• Top-of-Hood Buttons: Integrated "A-Buttons" under the hood covers allow for remote shifting or controlling compatible ANT+ cycling computers.

Specifications

• Series: Dura-Ace R9100

• Connectivity: Wired Di2 (E-Tube SD50 Port)

• Shifter Type: Dual Control Lever (2×11-Speed)

• Brake Compatibility: Hydraulic Disc (Mineral Oil)

• Lever Material: Carbon Fiber Reinforced Plastic (CFRP)

• Speed Compatibility: 11-Speed (Road)

Typical Components Included

• Shimano Dura-Ace ST-R9170-R (Right/Rear Shifter)

• Shimano Dura-Ace ST-R9170-L (Left/Front Shifter)

• Brake Hose Fixing Bolts and Plugs

• User Manual and Setup Guide