Dura-Ace Di 2 (Dual Integrated Intelligence) moves to the next generation. Tested in competition & taken to victory by pro riders in all conditions, including the 2012 Tour de France Team Sky. Di 2 provides the opportunity for shifting from previously inaccessible areas, & the Sprinter Switches allow for rapid shifting while in the drops. Find your perfect gear without having to change your riding position. Key
Features: 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 contaminates, corrosion & stretching, & also provides effortless gear shifts. Simply pressing tactile buttons allows effortless & comfortable shifting even when your hands are cold. Mount the Sprinter Switches anywhere on your handlebar to allow rear derailleur shifting in your preferred riding position. Weight: 10g (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.