Shimano 105 Di2 ST-R7170 12 Speed Shifters + Flat Mount Caliper Size:Rear Brake - Left Hand HWYABL00S2562S - Shimano Micro Spline

HWYABL00S2562S - Shimano Micro Spline 12-speed Freehub + Thru Axle End Cap (12x142/148)

Built to last and easy to use

Di2 connectivity wireless_Di2 shifting

allow the pump to take up minimal space in a trunk

Shimano 105 Di2 ST-R7170 12 Speed Shifters + Flat Mount Caliper Size:Rear Brake - Left Hand HWYABL00S2562S - Shimano Micro SplineWorry 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