Shimano 105 ST-R7170 Di2 Shift/Brake Lever

Worry-free Di2 shifting in a compact shifter size

The new SHIMANO 105 shift/brake lever features Di2 electronic shifting for the first time, bringing precise, intuitive gear changes to even more riders. Reach adjustment and customized button functions allow you to dial in your ideal ergonomics.

Clean cockpit: Wireless connection enhances the aesthetic of your bike while keeping shifting lightning fast
Longer lasting. Uses two CR1632 batteries (battery life: 3.5 to 4 years)Compact, ergonomic performance cascaded from DURA-ACE
Raised hood peak improves ergonomics, while a longer hood body increases hand support

Make DURA-ACE yours with custom button function and adjustable ergonomics
Easily change button function with the E-TUBE app
Find your optimum lever position with simple reach adjust