Shimano ST-R7170 105 Di2 Hydraulic Disc STI Shifter / Brake Set Select Option:Pair Measured C-C

Measured C-C

worn alone on winter trail runs

Style: Pro-Fit (Tightest Fit)

thanks to its easy rolling base layer

Shimano ST-R7170 105 Di2 Hydraulic Disc STI Shifter / Brake Set Select Option:Pair Measured C-CShimano ST R7170 105 Di2 Hydraulic Disc STI Shifter Brake Set Shimanos latest electronic Di2 105 shifters communicate wirelessly with the frames derailleur and battery system, making fitting easier and the front end cleaner. Although the levers are in exactly the same place as with the mechanical STI units, all that is needed to switch chainrings is a light press on the lever for an instant change. When a different sprocket is selected at the rear,