Shimano 105 Di2 ST-R7170 12 Speed Shifters + Flat Mount Caliper GSULT one thing we all know

one thing we all know is they keep things interesting

four spoke wrenches as well as 7-

Alternative clamp plate with integrated Zipp QuickView mount available separately

hardened steel breaker pin

The weight is not more than 101 grams with full cover

Shimano 105 Di2 ST-R7170 12 Speed Shifters + Flat Mount Caliper GSULT one thing we all knowWorry 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