Shimano ST-R7170 Left 12-2 Shifter

Worry-free Di2 shifting in a compact shifter size

• The 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.

Features

• 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

Technologies

E-Tube

• E-TUBE is Shimano's ''service'' that uses websites or apps to maximize the enjoyment of riding a bicycle by connecting the riders, the bicycles and SHIMANO.

Reach Adjust

• Brake lever is equipped with a reach adjust mechanism. The distance from handlebar grip to lever can be adjusted to suit any hand size, type of riding and individual rider preferences.

DUAL CONTROL LEVER

• DCL stands for DUAL CONTROL LEVER. It has brake and shifting functions in the system and enables easy operation.
• Ergonomic innovation is probably more critical to the higher standard performance than the added gearing. The shift internals borrow the robustness from MTB technology and are so smooth and effortless that one finger shifts front and rear are possible. Indeed, shifting is the ultimate act of SHIMANO TOTAL INTEGRATION, and simply has to be experienced to be understood.