Shimano Dura-Ace R9150 Di2 Climbing Shift Switch

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
The removal of traditional mechanical cables in favour of electrical wires eliminates poor shifting caused by contaminates, corrosion and stretching, and also provides effortless gear shifts
Simply pressing tactile buttons allows effortless and comfortable shifting even when your hands are cold
Climbing twin button satellite shift switch is used to operate the rear derailleur whilst your hands are on the top of the bars, one button up , one button down
To be plugged direct in to E-tube drop bar STI shifters
Shift switch is supplied with 261 mm E-tube electrical cables installed
Weight is 30 grams