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Famous climbs
Length and average gradient from official sources only. Each page has a time-by-W/kg table from the climb time calculator.
| Climb | Country | Length | Avg | Gain |
|---|---|---|---|---|
| Alpe d'Huezfrom Le Bourg-d'Oisans | France | 13.8 km | 7.9% | 1,266 m |
| Mont Ventouxfrom Bédoin | France | 21.8 km | 7.5% | 1,598 m |
| Col du Tourmaletfrom Luz-Saint-Sauveur | France | 18.9 km | 7.7% | 1,400 m |
| Col du Galibierfrom Valloire | France | 18.2 km | 7% | 1,239 m |
| Col de la Madeleinefrom La Chambre | France | 19.3 km | 8% | 1,521 m |
| Col d'Izoardfrom Briançon | France | 19.2 km | 6.5% | 1,170 m |
| Col de l'Iseranfrom Val-d'Isère | France | 16 km | 5.8% | 929 m |
| Col de la Croix de Ferfrom Saint-Jean-de-Maurienne | France | 29 km | 6.5% | 1,615 m |
| Col du Glandonfrom Saint-Étienne-de-Cuines | France | 20.9 km | 7% | 1,477 m |
Figures checked 14 October 2026. No KOM times or history anecdotes — only what the source states.