Shimano 105 Di2 ST-R7170 12 Speed Shifters + Flat Mount Caliper GSULT Aerothan tubes consist of 100%

Aerothan tubes consist of 100% thermoplastic polyurethane (TPU)

Various Colours

and offer superior suppleness and road feel

Brake Lever Actuation: Short Pull Super SLR

Why Choose the Pirelli P Zero Road Clincher Tyre - Black

Shimano 105 Di2 ST-R7170 12 Speed Shifters + Flat Mount Caliper GSULT Aerothan tubes consist of 100%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. Features Clean cockpit: Wireless connection enhances the aesthetic of your bike while keeping shifting lightning fast Longer lasting. Uses two CR1632 batteries