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.
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Features
Simply pressing tactile buttons allows effortless and comfortable shifting even when your hands are cold
Sprinter single button shift switches are used to operate the rear derailleur with a tap of the thumb whilst in the drops, one shifter up, one shifter down
Can only be used in conjunction with ST-9070 drop bar STI shifters
Shift switches are supplied with 130mm E-tube electrical cables installed
