Features

• 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
• Top bar button shift switches are used to operate the rear derailleur
• Can be used in conjunction with ST-9270 drop bar STI shifters
• Shift switches with 260 mm SD-300 series E-tube electrical cables fitted