This Shimano Ultegra 6770 Di2 10 Speed Rear Derailleur is no longer available although you may find similar or newer versions below:
The rear derailleur is pre-programmed allowing you to shift gear quickly and accurately in all conditions.
The derailleur is immune to rough circumstances and protected from impact damage by its reinforced inner cage. It has a maximum sprocket of 28T for wide-range gearing.
Control at the Tip of your Finger
The components of Shimano's Ultegra series have always stood for innovative technology, dependability and high performance. That explains why the term 'ULTEGRA' has become part of the vocabulary across the bicycle world. Road bikes equipped with Ultegra serve a wide range of user profiles - from mileage-hungry touring enthusiasts to recreational cyclists with racing ambitions to semi-professional club riders.
Now also with Electronic Shifting: The introduction of electronic Ultegra Di2 shifting components now puts the finishing touches to Ultegra. It gives users the freedom to choose between mechanical and electronic shifting, whichever they prefer. Once again, Shimano's top group Dura-Ace has inspired the advanced component technology of Ultegra, making it available to road enthusiasts as of now.
Various derailleur systems were designed and built as far back as the late 1800s. A French bicycle tourist, writer and cycling promoter Paul De Vivie (1853-1930), invented a two speed rear derailleur in 1905 which he used on forays into the Alps, and we wonder if 20 gears are enough..... Since then there have been many advancements, in the number of gears, materials and reductions in weight. Wiggle lists a large selection of front and rear derailleurs catering for double and triple systems with 7, 8, 9, 10 and even 11 speed cassettes.
Shimano are the makers of the world's most well known cycle component brand. Established in 1921 when the first cycle freewheel was forged. Shimano produce drivetrains, wheels, pedals, shoes, cycling clothing and pretty much every Shimano cycle accessory you can think of! Famous for their top end products ridden by the pro's, Dura-Ace and XTR, which cover both road and MTB's. At Shimano, they're doing everything they can to respond to heightened environmental concerns. Shimano are proud to be a producer of bicycle components that help people to enjoy outdoor sports and interact with nature through healthy non-polluting activities. In their 87 plus years of existence Shimano have accumulated a wealth of technology and product development and expertise that serves as the driving force behind their continually evolving product line.
We are sorry, but due to your delivery destination USA we can not dispatch this item.
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Returned goods must be unused and supplied with their original packaging, unless the goods are faulty.
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Executive Director: Stefan Barden.