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Lightweight aluminium outer bash ring
this model allows you to effortlessly adjust your saddle’s height without stopping your ride
LED indicator lights communicate connectivity and more
Double standardized bolt circle diameter allows for use of standard
The circumferential channels cut into the terrain
Shimano Ultegra 6870 Di2 11 Speed Rear Derailleur Chain length_126 Links Lightweight aluminium outer bash ringShimano Ultegra 6870 Di2 11 Speed Rear Derailleur The Ultegra 6870 Di2 11 speed rear derailleur is now more compact and lighter with Shimano's E Tube connection making installation simpler with wide gear ratio capacity for compact setups as well as the traditional road double. With Di2 technology shifting is easy and precise just a light touch, as soft as a mouse click, is sufficient for the front or rear derailleur to instantaneously select the