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Shimano

Shimano SW-7971 Dura-Ace Di2 10 Speed TT and Triathlon Switch Set - Double

£239.99

Product code:  00102248
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Product Details

As an addition to the mechanical Dura-Ace 7900 series, the electronic Dura-Ace 7970 will deliver state-of-the-art technology that will give its users a revolutionary road riding experience. Di2 stands for 'Digital Integrated Intelligence'. This innovative shift technology is still based on the Shimano Index System (SIS) that has proved its superior gear changing characteristics over the years. The big difference is that in this case , the shifting action is provided for by electronics instead of mechanics. This electronic shifting system was tested extensively over the past two years by several professional riders in all conditions possible, such as rain, mud, low temperatures, cobble stone roads and combinations of all of these at the same time. Dura-Ace 7970 series consists of Dual Control Levers, front and rear derailleur's and a battery kit combined with remaining 7900 mechanical components. The Shimano SW-7971 Dura-Ace Di2 10 Speed TT and Triathlon Switch Set - Double are part of the 7970 range.

The most advanced level of shifting technology: at the touch of a switch Dura-Ace Di2 is quick shifting, smooth, and effortless. 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. Shift switches to be used in conjunction with ST-7971 TT aero levers which can be located on the aero extensions as a replacement for traditional mechanical bar end shifters. These switches now give the added option of being able to operate the gears from either the aero extension or the aero ST-7971 brake lever previously not possible on a TT set up. These Di2 switches are also compatible with the FlightDeck computer (SC-7900), measuring important data such as heart rate, altitude, cadence, gear position, battery indicator, and more. Switches are supplied without electrical cables, as these need to be ordered separately to suit.

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