Team Sky bike sponsor Pinarello has supplied the team with a single white Pinarello F10, contrasting with the standard black livery of the other team bikes.
We spotted the bike propped up against the team truck alongside the other team bikes ahead of stage two of the Critérium du Dauphiné.
However, a spokesperson for the team instead suggested the bike was for a member of staff and not one of the riders: "It's one of the staff bikes. We're lucky that Pinarello provide us with staff bikes that we often have with us on races, and they recently provided one of the new F10s in a white colour-way."
Team Sky communications manager Ben Wright explained: "We have a fantastic relationship with Pinarello and so the white F10 is just the latest in a long line of things they've done for us in terms of different designs and colour schemes, not all of which end up being seen in races.
"Fausto [Pinarello] was even up with us at the top of the mountain when Mikel Landa won at the Giro d'Italia, and they're never short of ideas for different designs for riders or just for the team."
It is certainly a beautiful-looking machine that makes a nice change from the regular stealth-black bikes.
Will Team Sky be riding white bikes at the Tour de France? It would appear there are no plans for them to be, but we would surely welcome it.
The bike pictured is fitted with the new Shimano Dura-Ace Di2 R9150 groupset, Pro finishing kit, a Fizik Arione R3 saddle and Shimano C50 tubular wheels.
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