Shimano Dura-Ace Di2 ST-9070 Dual Control Levers - 11 Speed

Product Description

The Shimano Dura-Ace Di 2 (Dual Integrated Intelligence) features the most enhanced level of shifting technology. Put to the test in competition & used in victories by pro riders in every condition, including the 2012 Tour de France Team Sky. Di 2 has been made 11-speed for 2013. All new 9070 shifters features enhanced feedback & ergonomics, this provides simple access to the shift buttons at the top of the hoods. Clean wiring is possible with the single-wire E-tube connections, along with simple connections to satellite shifters on bar tops or in the drops.
- A.D. Key

Features: Dura-Ace Di 2 907011-Speed Road STI Levers
- Double. The most advanced level of shifting technology: at the touch of a switch Dura-Ace Di 2 is quick shifting, smooth, & effortless. The removal of traditional mechanical cables in favour of electrical wires eliminates poor shifting caused by contaminants, corrosion & stretching, & also provides effortless gear shifts. Simply pressing tactile buttons allows effortless & comfortable shifting even when your hands are cold. Buttons are located in a near identical place to the positions you'd assume for shifting using a mechanical Shimano STI. New design means that you can smoothly shift up or down by as many gears as you want simply by keeping the button depressed. Dura-Ace Di 2 is now compatible with Ultegra Di 2 cables, battery & junction box. Brake lever pivot is positioned to increase power & provide excellent ergonomics when riding on the hoods.
- Finely tunable reach adjusters for the levers enable a custom fit for any hand size. Levers are supplied without electrical cables, as these need to be ordered separately to suit your frame. Weight: 237g (per pair, manufacturer claimed). Compatible with the Flight Deck computer, measuring important data such as heart rate, altitude, cadence, gear position, battery indicator & allowing you to customise the shifting action of the derailleurs.