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Col de Crozet - Crozet     open your myclimbbybike to add this climb

12.6 km  1490 m  (940 m)  7.4 %


Paved road for about half the way up. Following that a track - best for mountain bike.

The Col de Crozet is situated in Rhone-Alpes. This climb belongs to the Jura mountains. The Col de Crozet via Crozet is ranked number 22 of the Jura mountains. This Col de Crozet approach starts in Crozet. The Col de Crozet climb is 12.6 km long. You gain 940 heightmeters, so the average gradient is 7.4 %. The climb is ranked 1560 in the world. If you want to climb the Col de Crozet, you can find more information on how to train to climb the Col de Crozet here.

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Climbbybike difficulty score (101.6)
Ranking Jura mountains
Ranking France

Col de Crozet via Crozet popularity rank : 731

The Col de Crozet has been climbed by 3 climbbybikers. It is ranked No. 731 as the most climbed climb in the world.
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Col de Crozet via Crozet: 4 reviews


Great climb if you want no traffic and dual surfaces - tarmac for first half and then gravel. Steeper beginning but a good average 7% ascent. It’s a logging road hence lack of traffic. Has to be climbed by MTB. Brilliant view of Geneva valley and lake at the top. Gravel descent a decent thrill.

Chris Patient

Ideally one would have two bikes to climb the Col de Crozet by bike: a nice light carbon road bike for the paved section and a cross country mountain bike for the second section of bone jarring limestone track to the top. I did it on an old rigid steel mountain bike with tyres pumped up hard to 4 bar. The forest track is brutal with two very steep and difficult ramps to the top where one is rewarded with a fantastic view. I continued on to Faucille and descended by road to make a fantastic loop. Highly recommended.

Chris Patient

Ideally you want two bikes for The Col de Crozet. A nice light carbon road bike for the relatively good tarmac on the steeper first section; and then a plush soft tail full suss mountain bike for the long gradual rocky unsurfaced forest part of the road to the top. I did it on a retro steel 26 inch steel steed with fat tyres pumped up to 4 bar. To climb The Col de Crozet by bike is brutal on any bike especial the last two steep rocky ramps that are quite a challenge to ride. The view from the top is well worth the effort however. There is a ceramic orientation table up there fenced off to keep the cows away. I chose not to descend the same way so as to avoid the jarring road on my rigid mountain bike and went up and over to the Faucille which was a fantastic long descent. Well recommended.


Very nice climb starting in Crozet with a paved road between the altitude of 550 to 900 meter with slope of 9 % in the first part of the climb and an average of 8 %. Then it turns into a gravel road which has up to the top at 1480 m an average slope of 7.3 %. beyond the tree line at 1300 meter you have a very rewarding view over the alps and lake Geneva. From this point the route becomes more uneven with 2 or 3 short steep sections before reaching the col. If you want to stress your muscles more, there is a shortcut between the 1100 to 1300 meter points passing Le Fierney, with a gradient of about 15 %. Overall a nice climb by mountainbike.

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