SHIMANO DI2 105 R7170 hydraulic disc shift shifter brake lever, 2*12s

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.
• Easily change button function with the E-TUBE app
• Find your optimum lever position with simple reach adjust