Shimano Ultegra RD-6700 Rear Derailleur (GS)

About Rear Derailleurs

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 bags and materials and reductions in weight. Wiggle lists many fronts and rear derailleurs catering for double and triple systems with 7, 8, 9, 10 and even 11-speed cassettes.

About the Shimano brand

Shimano is the maker of the world's most well known cycle component brand. They were established in 1921 when the first cycle freewheel was forged. Shimano produce drivetrains, wheels, pedals, shoes, cycling clothing and every Shimano cycle accessory you can think of! Famous for their top-end products ridden by the pros, Dura-Ace and XTR, which cover both road and MTB. Shimano is doing everything possible to respond to heightened environmental concerns. Shimano is 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 its 87-plus years of existence, Shimano has accumulated a wealth of technology and product development and expertise that serves as the driving force behind its continually evolving product line.