Yes, the Tour de France is upon us and with it, inevitably, a whole slew of new tech that will be unveiled during the great race.

Our resident experts on all things gear-related, Dan Cavallari and Peter Stuart, go in deep on a new Dura Ace groupset that is much talked about but yet to be seen in the wild, apart from a few spy shots in Belgium recently. Is it a wired / wireless combo? Can the battery really last the entire length of a three-week Grand Tour? Will there be mix and match capability between a variety of Shimano groupsets? And is the angular-looking chainset really ugly, or just the shock of the new?

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Rouleur Tech Podcast - new Dura Ace?