Shimano STI LVR Set 105 Di2 Hydraulic Left Rear ST-R7170-L Multitube All designed to make sure

All designed to make sure you don't have to stop your ride and keep going for as long as you want

Constant (15 lumens)：5 hrs

Reach adjustment: Yes

Honeycomb centre tread provides low rolling resistance and excellent traction in wet and dry conditions

- Boron heat treated axle

Shimano STI LVR Set 105 Di2 Hydraulic Left Rear ST-R7170-L Multitube All designed to make sureDescription Great value 105 Wireless hydraulic disc brake Di2 STI's give you control, modulation and power with minimal effort in all riding conditions Wireless connectivity to the front and rear derailleurs for effortless trouble free gear shifts With Di2 technology shifting is easy and precise just a light touch, as soft as a mouse click, is sufficient for the front or rear derailleur to instantaneously select the correct gear Full and semi