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Shimano Dura-Ace RD-7970 Di2 Rear Derailleur 10 Speed CeramicSpeed Pulleys
5" Bike - 2011
8 x 80 mm - 6 º
Giant TCR Advanced SL0 Medium Bike - 2016
Specialized Diverge 54cm Bike - 2019
Shimano EW-WU111 Di2 Wireless Unit model-575as-rlongtravel Shimano Dura-Ace RD-7970 Di2 RearShimano's SM EWWU111A D Fly wireless transmitter connects riders to their Di2 data to monitor Di2 gear position, battery life, as well as some other common rider data functions. Compatible with Shimano Road Di2 systems Compatible with Garmin Edge 1000 and PRO SCIO ANT+ cycling computer Powered by Di2 shifting system battery Dimensions: 38mm x 25mm x 12. 5mm Weight: 5g Firmware updates available through Shimano's E Tube Project app
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