Col de Joux Plane French Alps

Start town - Samoëns

Length of climb - 11.6km

Average gradient - 8.5

Maximum gradient - 12.5%

Events - Tour de France 2017

Welcome to Season Two Austria, Colorado, Dolomites, French Alps , Pyrénées

Col d’Izoard French Alps

Start town - Guillestre

Length of climb - 30.5km

Average gradient - 4.8%

Maximum gradient - 12% at 23km

Events - Etape du Tour 2017, Haute Route Alps, Tour de France 2017

Mont Ventoux French Alps

Start town - Malaucène

Length of climb - 21.4km

Average gradient - 7.2%

Maximum gradient - 12% at 12.5km & 15km

Col de la Bonette French Alps

Start town - St-Étienne-de-Tinée

Length of climb - 25.8km

Average gradient - 6.4%

Maximum gradient - 15% at 11.5km & 25km

Events - Haute Route Alps

Col de la Madeleine French Alps

Start town - Feissons-sur-Isère

Length of climb - 26.3km

Average gradient - 6.2%

Maximum gradient - 11.5% at 16.5km

Events - Haute Route Alps

Col de la Croix de Fer French Alps

Start town - Barrage du Verney

Length of climb - 27.5km

Average gradient - 4.7%

Maximum gradient - 11% at 12km

Events - La Marmotte, Tour de France 2017

Col Agnel French Alps

Start town - Ville Vieille

Length of climb - 21km

Average gradient - 6.6%

Maximum gradient - 10% at multiple points

Col d’Izoard French Alps

Start town - Briançon

Length of climb - 19.5km

Average gradient - 5.8%

Maximum gradient - 9% at 12.8km

Events - Haute Route Alps

Col de la Bonette French Alps

Start town - Jausiers

Length of climb - 24km

Average gradient - 6.6%

Maximum gradient - 15% at 22.5km

Events - Haute Route Alps

Alpe d’Huez French Alps

Start town - Bourg d'Oisans

Length of climb - 13.2km

Average gradient - 8.1%

Maximum gradient - 13% at 6.5km

Events - La Marmotte

Mont Ventoux French Alps

Start town - Bédoin

Length of climb - 21.4km

Average gradient - 7.6%

Maximum gradient - 12% at 7km and 21km

Col du Glandon French Alps

Start town - St Étienne-de-Cuines

Length of climb - 19.7km

Average gradient - 7.3%

Maximum gradient - 11% at 17.5km

Col du Galibier French Alps

Start town - Valloire

Length of climb - 18.1km

Average gradient - 6.9%

Maximum gradient - 10% at 17.5km

Events - Haute Route Alps, La Marmotte, Tour de France 2017