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France
Occitania
Bagnères-De-Bigorre

Sost

The best MTB trails around Sost

4.0

(138)

831

riders

87

rides

Mountain biking around Sost, located in the French Pyrenees, offers diverse terrain for cyclists. The region is characterized by mountainous landscapes, including notable passes and valleys, providing a mix of challenging ascents and scenic descents. Riders can explore routes that traverse through forested areas and open mountain views, with elevations varying across the trails.

Best mountain bike trails around Sost

  • The most popular mountain bike trail is Port de Balès – Balès loop from Bourg-d'Oueil, a 10.6 miles (17.1…

Last updated: June 20, 2026

4.5

(2)

21

riders

#1.

Port de Pierrefite Cromlech – Port de Balès loop from Cirès

24.6km

02:17

710m

710m

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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Moderate

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate
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Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate

Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

Easy

3.0

(1)

6

riders

Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.

Hard
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Popular around Sost

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Tips from the Community

Stefan Michaelis
June 22, 2026, Cromlech du Port de Pierrefite

The summit rock and a seating area are located after the strenuous ascent. Here you have to decide which way you want to go next.

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the entry fee is €3

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Here you'll find the Basilica of St. Just, which you can visit for €3. Very beautiful 😊

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About a kilometer east of Saint-Bertrand-de-Comminges stands the 12th-century Basilica of Saint-Just-de-Valcabrère, belonging to the municipality of Valcabrère.

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Nice little town that hasn't lost its charm despite the tourists

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4

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Simple village church in Valcabrère; no tourists, but regular services

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2

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From the year 1120, the construction of a cathedral was begun on the orders of the Bishop of Comminges, around which a new small community formed, named after this bishop. In the 16th century, during the Huguenot Wars, the sacred building was severely destroyed.

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3

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Flo
June 2, 2025, Col de l'Esclette

A fairly steep descent from the top of the Esclette back to the track. It offers a brief break from the marked route.

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Frequently Asked Questions

How many mountain bike trails are available around Sost?

There are over 85 mountain bike trails around Sost, offering a wide range of options for different skill levels. You'll find 7 easy routes, 38 moderate routes, and 40 difficult routes to explore.

What kind of terrain can I expect on mountain bike trails in Sost?

Mountain biking around Sost is characterized by diverse terrain, including challenging ascents through mountain passes, scenic descents, forested sections, and open valley views. The region's mountainous landscapes provide a mix of technical and flowing trails.

Are there any family-friendly mountain bike trails in Sost?

While Sost offers many challenging routes, there are 7 easy mountain bike trails suitable for beginners or families looking for a less strenuous ride. These routes typically feature gentler gradients and less technical terrain.

What do other mountain bikers enjoy most about the trails in Sost?

The mountain bike trails in Sost are highly rated by the komoot community, with an average score of 4.2 stars from over 160 reviews. Riders often praise the varied terrain, the challenging mountain pass climbs, and the expansive mountain views.

Can I find circular mountain bike routes in Sost?

Yes, Sost offers several excellent circular mountain bike routes. A popular choice is the Port de Balès – Balès loop from Bourg-d'Oueil, which is 17.1 km long and features mountain pass climbs. Another option is the Port de Balès – Port de Pierrefite Cromlech loop from Mayrègne, covering 22.0 km.

Are there any historical sites or landmarks to see along the mountain bike trails?

Yes, some routes offer views of historical sites. For instance, the View of the Mountains – Saint-Bertrand-de-Comminges loop from Marignac - Saint-Béat passes by historical sites and offers expansive mountain views. You can also find highlights like the Port de Pierrefite Cromlech nearby.

What are some notable mountain passes I can cycle through in Sost?

Sost is known for its mountain passes. You can cycle through or near passes like Port de Balès and Peyresourde Pass. These offer challenging climbs and rewarding views.

Are there any particularly challenging mountain bike routes for experienced riders?

Absolutely. Sost has 40 difficult mountain bike routes. For a significant challenge, consider the Thebes – Mauléon-Barousse loop from Thèbe, which is 30.1 km long and involves over 1100 meters of elevation gain.

What is the longest mountain bike trail available in Sost?

One of the longer routes is the Saint Bertrand de Comminges – Thebes loop from Marignac - Saint-Béat, which spans 46.4 km and offers a moderate challenge with varied terrain.

What kind of views can I expect while mountain biking in Sost?

The trails in Sost offer stunning views of the mountainous landscapes, including panoramic vistas from mountain passes, picturesque forested areas, and open valleys. Many routes, such as the View of the Mountains – Saint-Bertrand-de-Comminges loop from Marignac - Saint-Béat, are specifically highlighted for their expansive mountain views.

Are there any specific attractions or points of interest near the mountain biking areas?

Beyond the trails themselves, you can explore nearby attractions such as the thermal town of Bagnères-de-Luchon, or natural features like the Cliff of the Roman breach. Mountain huts like Saunères Hut also offer places to rest.

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