The Shimano 105 ST-R7170 Di2 Shift/Brake lever features Di2 electronic shifting for precise, intuitive gear changes to even more riders. The 105 BR-R7170 caliper features the Shimano Flat Mount System and its low-profile design that is ideal for road bikes.

• Reach adjustment and customized button functions allow you to dial in your ideal ergonomics
• Creates a clean cockpit with wireless connection and enhances the aesthetic of your bike while keeping shifting lightning fast
• Easily change button function with the E-TUBE app
• Includes 2 x CR1632 batteries
• 10% wider pad clearance decreases the chance of disc brake rotor rub
• Maintenance-friendly one way bleeding process
• Includes L03A Resin pads with finned alloy backplate