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Routes
Bike touring routes & trails
France
Auvergne Rhône Alpes
Saint-Jean-De-Maurienne
Villargondran

Lacets de Montvernier Loop

Moderate

4.5

(6)

276

riders

Lacets de Montvernier Loop

01:48

26.6km

450m

Cycling

The Lacets de Montvernier Loop is a moderate 16.6-mile touring cycling route in the French Alps, famous for its unique hairpin bends and val

Last updated: February 26, 2026

Waypoints

A

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Parking

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1

10.6 km

Lacets de Montvernier

Highlight (Segment) • Other

Departure of the laces of the montvenier, made popular by the tour de France, super easy to climb.

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26.6 km

End point

Parking

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Way Types & Surfaces

Way Types

24.6 km

1.01 km

772 m

120 m

110 m

< 100 m

Surfaces

24.0 km

2.44 km

165 m

< 100 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (770 m)

Lowest point (500 m)

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Weather

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Thursday 7 May

19°C

8°C

43 %

Additional weather tips

Max wind speed: 6.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

Where can I park to start the Lacets de Montvernier Loop?

The loop typically starts near the Plan d'eau des Oudins. You can find parking facilities in the vicinity of Pontamafrey or near the lake itself, which serves as a convenient starting point for this cycling adventure.

Is public transport available to reach the start of the route?

While direct public transport to the exact trailhead might be limited, you can reach nearby towns in the Maurienne Valley by train or bus. From there, you would likely need to cycle or arrange a local transfer to the starting point of the loop near Pontamafrey.

Is the Lacets de Montvernier Loop suitable for dogs?

As this is primarily a road cycling route with narrow sections and traffic, it is generally not recommended for cycling with dogs. The focus is on the challenging climb and descent, which may not be safe or enjoyable for pets.

What is the best time of year to cycle the Lacets de Montvernier Loop?

The best time to cycle this route is typically from late spring to early autumn (May to October). During these months, the weather is generally favorable, and the mountain passes are clear of snow. Cycling in the mornings or on weekends can also help you avoid heavier traffic.

Do I need a permit or pay an entrance fee for this cycling route?

No, there are no specific permits or entrance fees required to cycle the Lacets de Montvernier Loop. The road is publicly accessible.

What makes the Lacets de Montvernier a unique cycling experience?

The Lacets de Montvernier is renowned for its unique engineering and visual appeal. It features 17 or 18 incredibly tight hairpin bends, carved directly into the cliff face, resembling a 'ribbon of road' or 'shoelaces' winding up the mountain. This distinctive construction, combined with its history as a Tour de France climb, makes it a truly memorable ride.

How challenging is the Lacets de Montvernier climb?

The climb is considered moderate. It has a consistent average gradient of 8.1% to 8.7%, with some sections reaching 10% or even 13%. While sustained, the frequent hairpin bends offer brief moments to ease your pace, making it manageable for intermediate cyclists. The climb itself is relatively short, about 3.4 to 4 kilometers.

What kind of views can I expect along the route?

As you ascend, you'll be treated to wonderful, sweeping views southeast of the Maurienne Valley. The scenery transitions from lush, tree-lined sections to a more open, panoramic vista from the cliffside. It's a climb designed to be savored for its dramatic beauty.

Are there any specific landmarks or points of interest on the route?

The primary landmark is the climb itself, the Lacets de Montvernier, with its iconic hairpin bends. The road's inclusion in the Tour de France multiple times also adds to its fame. The engineering feat of its construction between 1928 and 1934 is a point of interest in itself.

Does this route connect with other cycling trails?

Yes, the route intersects with several other well-known paths. You'll find it passes through sections of the Route des Grandes Alpes à vélo, variante Saint-François-Longchamp / Valloire, La Mauriennaise, and the dedicated Lacets de Montvernier trail. It also briefly touches parts of the Col du Chaussy route for those looking to extend their ride.

What is the road surface like on the Lacets de Montvernier?

The road surface on the Lacets de Montvernier is generally smooth tarmac. However, it is quite narrow, especially on the hairpin bends, so cyclists should remain vigilant.

Is there a recommended strategy for cycling the Lacets de Montvernier?

Many cyclists suggest that this is a climb to be savored for its incredible views rather than rushed. The frequent hairpin bends offer natural opportunities to momentarily ease your pace and take in the stunning Maurienne Valley panorama. Focus on a steady rhythm and enjoy the unique experience.

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