NEW Shimano 105 ST-R7170-R Di2 Shift/Brake Lever with BR-R7170 Hydraulic Disc Brake Caliper - Rear, 12-Speed, Flat Mount, Black

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