Chris Froome, Tour de France 2013, stage six

The 2013 Tour de France's overall classification will take shape this weekend when the peloton races in to the Pyrenees. It reaches its first summit finish in Ax 3 Domaines today and covers five serious cols en route to Bagnères-de-Bigorre tomorrow

Chris Froome leads the virtual GC after his Sky team topped rivals in the time trial in Nice. Alberto Contador (Saxo-Tinkoff) sits six seconds back, Ryder Hesjedal (Garmin-Sharp) 14 seconds and Cadel Evans (BMC Racing) 23 seconds. The mountains, however, will shake up the GC and paint a new picture by Sunday evening in Bagnères-de-Bigorre.

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