Shimano 105 ST-R7170-L Di2 Shift/Brake Lever - Left 2x Black. 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