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The Oisans mountain passes by bike: profiles, elevation changes and 3D maps

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The Oisans Col Series: climb the timed mountain passes all summer long

8 August 20267 August 2026 by Billy
Cyclist reaching the summit of an Oisans mountain pass, Oisans Col Series timed challenge

The Oisans Col Series: climb the Oisans mountain passes timed, at your own pace, all summer long. Concept, scheduled climbs and preparation tips.

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The Tour de France in the Oisans: Alpe d’Huez and its giants

8 August 20267 August 2026 by Billy
Crowds cheering at the finish of an iconic Tour de France mountain pass in the Oisans

L'Oisans, legendary land of the Tour de France: Alpe d'Huez, Galibier, Croix de Fer, Sarenne... and Pogačar's record in 2026.

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La Marmotte Granfondo Alpes: the legendary route in the Oisans

8 August 20267 August 2026 by Billy
Cyclists climbing an Alpine pass during La Marmotte Granfondo Alpes in the Oisans

La Marmotte: 174 km and 5,000 m of elevation gain over the Glandon, the Galibier and Alpe d'Huez. Route, history and advice for one of Europe's toughest cyclosportives.

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Recent Posts

  • The 3D relief map: the finest souvenir of your mountain pass
  • The hardest cycling cols in Oisans (ranking)
  • What gear ratio for climbing mountain passes? The guide to the right development
  • How to train to climb a mountain pass on a bike
  • Cycling up the passes of the Oisans on an electric bike (e-bike)

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