Shimano 105 ST-R7170 Di2 Disc Brake Lever & Shifter

The new Shimano105 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)(Initial shifter batteries may have a shorter battery life than stated above.)
• Raised hood peak improves ergonomics, while a longer hood body increases hand support
• Easily change button function with the E-TUBE app