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)

one thing we all know is they keep things interesting

Alternative clamp plate with integrated Zipp QuickView mount available separately

increased durability and maximum performance across demanding MTB terrain and high-performance cycling applications

and offer superior suppleness and road feel

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