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Dura Ace Road Bike

Dura Ace Road Bike

Shimano Total Integration (STI) is a gearshift system designed by Shimano for racing bicycles which combines the braking and gear shifting controls into the same component. This is a common feature on all road bikes these days, but was a revelation in 1990 when Shimano first introduced their completely integrated brake lever and gear shifter. This new design worked like a normal brake lever in the longtitudinal plane, but also allowed the rider to shift to a larger cog by pushing the lever so that it pivots laterally. Behind the brake lever, there is a smaller lever that shifts to a smaller cog when pushed towards the inside.

The STI system, thanks to the pioneering work done by Shimano from 1988 onward with Australian Tour de France legend Phil Anderson saw Shimano accepted as a leader in road bike components, much sought after by the professional riders of the time who were eager to gain the advantages the system offered or at least, not be disadvantaged by not having it.

Since the creation of the STI shifting system there have been many refinements, including the avaiability of complete groupsets bearing the various model names, Dura Ace, Ultegra, 105, Tiagra and Sora. Dura Ace is the ultimate component groupset being standard issue for around half of the UCI professional teams who take part in the worlds biggest races such as the Tour de France. Innovation, weight saving, precision and reliability have always been favored Dura Ace features and these are traits that continue to evolve as the Shimano engineers continually strive to perfect perfection. The first years of STI gearing saw 8 cogs at the rear followed a few years later by 9 and still later by 10 which is still the case today, but Shimano's most recent  gear shifting innovation proving more to be revolutionary with the introduction of the Dura Ace Di2 system, which is an electronic gear changing mechanism.

As early as March 2006, Shimano had replicated their previous experience with Phil Anderson, by having some pro riders do preliminary testing of the prototype electronic shifting groupsets; further testing in the pro-ranks continued during the next 2 years. In late 2009, Shimano released their electronically shifted Dura-Ace Di2 groupset, consisting of battery powered, servo actuated front and rear derailleurs controlled by electronic bar-end or brake lever integrated shifting paddles. Other components such as the crankset and brakeset are exactly the same as the standard Dura-Ace 7900 group components.

We stock a number of wonderful bikes with Dura Ace equipment, both mechanical and electronic. Have a look at the following links for more information, Colnago, Fondriest, Giant,

Dura Ace Road Bike

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