Shimano 105 ST‑R7170 Left Dual-Control Lever + BR‑R7170 Caliper Set (2×12‑Speed, Disc Brake, Di2)

Enhance your ride with the Shimano 105 ST‑R7170 left-hand Di2 shifter paired with the matching BR‑R7170 hydraulic disc caliper. This wireless shifting lever is designed for 2×12-speed drivetrains, offering seamless electronic gear changes with integrated disc braking control.

Clean, ergonomic, and refined from Dura-Ace ergonomics, this compact lever features adjustable ergonomics and Bluetooth-programmable buttons via Shimano’s E‑Tube app. The integrated hydraulic brake caliper delivers consistent stopping power with precision modulation, ideal for performance road or gravel builds.

Key Features:

• Left-handed lever for wireless Di2 electronic shifting, designed for Shimano 2×12-speed drivetrains

• Ergonomic design with adjustable reach and programmable buttons

• Integrated with the BR‑R7170 hydraulic caliper for crisp braking performance

• Sleek, minimized cockpit appearance

• Compatible with Shimano E‑Tube customization app