Shimano 105 Di2 ST-R7170 2×12-Speed Shifters

The ST-R7170 Dual Control Levers bring the revolutionary wireless electronic shifting of Shimano’s top-tier groupsets to the legendary 105 series for the first time. Designed for the 12-speed era, these shifters offer a semi-wireless cockpit that eliminates the need for cables running through the handlebar and frame, ensuring a clean and modern aesthetic. The ergonomics are heavily inspired by the flagship Dura-Ace and Ultegra models, featuring a raised hood peak and a revised body shape that provides more hand support and a more secure grip in the "aero" position. While offering professional-grade shifting speed and the reliable power of hydraulic disc braking, the 105 Di2 shifters prioritize ease of use and long-term durability. Powered by user-replaceable coin cell batteries with a lifespan of up to 2 years, the R7170 is the perfect entry point into the world of high-performance electronic road cycling.

Key Features

• Semi-Wireless Di2: Wireless connection from the shifters to the derailleurs simplifies assembly and creates a cleaner, more aerodynamic cockpit.

• Refined Ergonomics: Updated hood profile and lever shape offer improved hand wrap and comfort, reducing fatigue on long-range endurance rides.

• 12-Speed Precision: Seamlessly integrated with the R7100 drivetrain for crisp, reliable shifts every time, even under heavy pedaling loads.

• Hydraulic Disc Mastery: Integrated master cylinder provides elite-level braking power and modulation with Shimano’s proven Mineral Oil system.

• AXS-Style Wireless Setup: Easily customizable through the Shimano E-Tube Project app for personalized shift speeds and multi-shift settings.

Specifications

• Series: 105 R7100

• Connectivity: Di2 Wireless (Proprietary), Bluetooth/ANT+

• Shifter Type: Dual Control Lever (2×12-Speed)

• Brake Compatibility: Hydraulic Disc (Mineral Oil)

• Lever Material: Reinforced Plastic/Aluminum

• Battery: Two CR1632 per shifter (Approx. 1.5–2 year life)

Typical Components Included

• Shimano 105 ST-R7170-R (Right/Rear Shifter)

• Shimano 105 ST-R7170-L (Left/Front Shifter)

• Four CR1632 Batteries (Pre-installed)

• Brake Hose Fixing Bolts and Plugs

• User Manual and Setup Guide