Shimano Ultegra 6770 Di2 In Action

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Published 16 Sep 2012
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BikeRadar takes a close look at Shimano's Ultegra version of the (far less affordable) Dura-Ace Di2 electro...
BikeRadar takes a close look at Shimano's Ultegra version of the (far less affordable) Dura-Ace Di2 electronic transmission.

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