The Shimano 105 ST-R7170 Di2 Shift/Brake lever features Di2 electronic shifting for precise, intuitive gear changes to even more riders. 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 Raised hood peak improves ergonomics, while a longer hood body increases hand support Includes 2 x CR1632 batteries Item Specifications Adjustable Reach Yes Brake Lever Actuation Hydraulic Brake Lever Use Right Brake Type Disc Color Black Hydraulic Fluid Type Mineral Oil Includes Brake No keyword search Di2 Rear Der/Shifter Compatibility Shimano Road Di2 Weight 212