Shimano 105 Di2 ST-R7170 12 Speed Shifters + Flat Mount Caliper Bikecorp whilst the sturdy plastic base

whilst the sturdy plastic base has reinforced holes to allow it to fix onto the top tube bolt bosses

you can choose two options for the release angle : 13° or 17°

Designed for use on pedals with 15-millimetre slots

time trials

Inner plate: Chrome Plated + PVD Gold or Black

Shimano 105 Di2 ST-R7170 12 Speed Shifters + Flat Mount Caliper Bikecorp whilst the sturdy plastic baseWorry 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