Shimano Dura-Ace Di2 ST-R9150 2×11-Speed Shifters

The ST-R9150 Dual Control Levers represent the absolute lightest and most compact electronic shifters in Shimano’s 11-speed history. Designed specifically for rim brake purists and weight-conscious climbers, these shifters dispense with hydraulic reservoirs and wireless transmitters to achieve a remarkably slim, "wasp-waisted" ergonomic profile. This design allows for a more natural hand wrap and superior control during high-intensity efforts. Featuring carbon fiber lever blades and the highly tactile "click" of the R9100 series buttons, these shifters offer instantaneous, programmable shifting. Whether you are building a sub-6kg hill-climb bike or a professional-grade racing machine, the ST-R9150 provides the most refined rim-brake cockpit experience available.

Key Features

• Ultra-Slim Ergonomics: The lack of hydraulic internals results in the smallest hood circumference in the Di2 lineup, offering a perfect fit for all hand sizes.

• Wired Di2 Precision: Uses the reliable SD50 E-Tube wiring system for lightning-fast communication and long-term battery stability.

• Multi-Shift Programmability: Fully customizable via the E-Tube Project app, allowing you to hold the button for continuous shifts or use Synchro-Shift modes.

• Carbon Fiber Construction: Lightweight carbon brake levers provide maximum stiffness-to-weight ratio and a premium aesthetic.

• Top-of-Hood Buttons: Hidden buttons under the hood covers can be programmed to shift derailleurs or control compatible ANT+ cycling computers (Garmin/Wahoo).

Specifications

• Series: Dura-Ace R9100

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

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

• Brake Compatibility: Mechanical Rim Brake (SLR-EV / Short Pull)

• Lever Material: Carbon Fiber Reinforced Plastic (CFRP)

• Speed Compatibility: 11-Speed

Typical Components Included

• Shimano Dura-Ace ST-R9150-R (Right/Rear Shifter)

• Shimano Dura-Ace ST-R9150-L (Left/Front Shifter)

• Brake Cable and Housing Set (Standard)

• User Manual and Setup Guide