Video: Les Lacets de Montvernier (and Col de la Madeleine via Col du Chaussy)


Lacets means hairpins (think shoes laces). Les Lacets de Montvernier has 17 hairpins (lots of publications say 18, but one is questionable and off in its own #hairpinpolice). The 17 hairpins all come in a stretch of only 2.5 kilometres. That’s a hairpin every 150 metres. The road is narrow, the hairpins sharp, and large vehicles are forbidden. It’s a steady incline, roughly 8% average. Woohoo!

These hairpins are super fun. But note, they are only 2.5 kilometres long, with perhaps 200 metres of ascent. But look at the profile above. This ride climbs over 30 kilometres with almost 2000 metres of ascent. The Lacets are just an appetizer, albeit a very tasty appetizer

Here is a video including some drone footage:

It’s tough to photograph the hairpins while you are riding them (without a drone). But once you are above, there is a trail on the right to a cliff lookout. It’s a few hundred metres off the road along a trail, but road bikers could brave it. See map at bottom.

View from cliff lookout

After the hairpins, it’s roughly 10 challenging kilometres to Col du Chaussy. Very quiet and scenic. The highlight is a fantastic cliff stretch half way:

A 360 photo, use mouse to move photo:

1 km below Col du Chaussy

The far (north) side of Chaussy was only paved a few years ago. My route descends it briefly then, at Bonvillard, turns up towards Lac du Loup (Wolf Lake!). It’s paved until just past the lake, but then there are 8 kilometres of gravel.

Road cyclists: You can do this loop! At Bonvillard, instead of turning up to Lac du Loup, stay on the D99 descending to roughly 850 metres where it meets the main D213 road up to Col de la Madeleine.

Lac du Loup: 1512 metres

But I prefer the gravel. So quiet and scenic.

At roughly 1800 metres the road crosses into the valley with Col de la Madeleine. But it continues up high on gravel for a couple of kilometres before descending to join the paved Madeleine road a touch more than 2 kms from the summit.

Beautiful gravel. Col de la Madeleine in view top right.

Is the 8 km gravel stretch rideable with a road bike? I don’t know. It’s not the worst surface. How fussy are you? The worst part is the last stretch, a rough descent. I’d recommend thicker tires, but if you are not fussy ….. why not?

A strange cow

The summit: Col de la Madeleine

A very posh Col Sign (note, it’s actually 1993 metres 😉 )

Here are 4 routes up to Col de la Madeleine.

This … is … a … fantastic ride. On the climb, I saw more cyclists than cars, and I only saw three cyclists. And again, with a slight adjustment, road bikers can enjoy this loop. Great.

The final 5 kilometres between La Chambre and the base of Les Lacets are unfortunately on a busy road. Just be careful.

A 3D video of the route:

9.4 Awesome

A challenging, beautiful, huge climb. Remember the Les Lacets are only the appetizer.

  • Difficulty 9
  • Quiet / No Traffic 9.5
  • Views 9.5
  • Fun Factor 9.5
  • User Ratings (6 Votes) 4.6

About Author

Happiest while cycling uphill.


  1. Looks like you are having great fall weather there Will, or Indian summer as we call it in Canada. Those drone shots are really something else! They really begin to capture the scale of those mountains that regular photos don’t quite seem to able to do.
    Well done!

  2. Beautiful place. I was there in July of 2016. We had a great time. Thanks for sharing. One question, what camera did you use for the 360 shot on the Col du Chaussy?

  3. Daryl Christmas on

    This looks fantastic, I am going to do this route in September how long roughly do you think it will take ? I don’t ride ‘hills’ much but I have all day within reason.

    • The famous hairpins are only 2.5 kms long, and not too steep – 7% and 8%.

      The balance of the ride is far tougher. How long? Impossible to guess your strength. Have a close look at the complete profile, maybe helpful.

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