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MTB trails
France
Auvergne Rhône Alpes

Gex

The best MTB trails around Gex

4.3

(318)

2,453

riders

188

rides

Mountain biking around Gex offers diverse terrain at the foot of the Jura Mountains, providing varied topography for outdoor pursuits. The region features significant elevation changes and a network of trails suitable for different skill levels. Its landscape includes areas like Mont Mourex and cliffside traversals, contributing to a dynamic riding experience. This mountainous environment provides the necessary features for challenging and scenic mountain bike trails.

Best mountain bike trails around Gex

  • The most popular mountain bike trail is Les Rochassons trail – View from Mont Mourex loop from Gex, a 14.4 miles (23.2 km) trail that takes 2 hours 17 minutes to complete, offering views from Mont Mourex.
  • Another top favourite among local mountain bikers is Les Rochassons trail – View from Mont Mourex loop from Divonne-les-Bains, a moderate 12.9 miles (20.8 km) path with varied terrain and scenic viewpoints.
  • Local mountain bikers also love the Les Rochassons trail – Mount Mourex loop from Divonne-les-Bains, a 18.3 miles (29.5 km) trail leading through the Mont Mourex area, often completed in about 2 hours 54 minutes.
  • Mountain biking around Gex is defined by its Jura Mountain foothills, varied topography, and elevated viewpoints. The network offers options for different ability levels, from easy green runs to more technical singletracks.
  • The routes in Gex are highly rated by the komoot community with an average score of 4.3 stars from over 300 reviews. More than 2400 mountain bikers have used komoot to explore Gex's varied terrain.

Last updated: April 28, 2026

4.5

(19)

105

riders

#1.

Les Rochassons trail – Mount Mourex loop from Gex

23.4km

02:18

500m

500m

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. Advanced riding skills necessary.

Moderate

4.4

(17)

119

riders

Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.

Hard

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

Moderate

Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.

Hard

4.4

(7)

44

riders

Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.

Hard

56

riders

Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

Moderate

Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

Hard

Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

Moderate
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Popular around Gex

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Gems of the Ain — MTB routes amidst natural beauty

Mountain Biking Collection by

Ain Tourisme

Tips from the Community

Denis
November 10, 2025, Petit Montrond

One of the most beautiful viewpoints over the Alps that I know! Access from the Col de la Faucille is quite simple.

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Easy Ride

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A magnificent forest loop. Suitable for all levels, with 200m/20km of really technical sections - easily done on foot.

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magnificent view of Lake Geneva, Salève and Mont Blanc

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Technical blue line. Can be difficult

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Not for beginners, but it nice and technical.

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Yann
March 8, 2025, The Rhône River

Path along the Rhone

Translated by Google

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Very nice ride. Access routes very nice and safe. The way up to access Mont Mourex parking is a bit technical mainly because of round rocks but easily doable. The Rochassons trail is very nice...a real ride in the park. There is only one section where the trail goes down and is a bit in V shape (maybe because of water during winter). Just take your time and keep focus. Is doable but keep focused. The view from Mont Mourex is great, specially if you are lucky with the weather. Its a very nice 360 view and a nice way down back to the parking.

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Frequently Asked Questions

How many mountain bike trails are available around Gex?

There are nearly 200 mountain bike trails around Gex, offering a wide range of options for all skill levels. This includes 39 easy routes, 118 moderate routes, and 40 difficult trails, ensuring there's something for every rider.

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

The Gex region, situated at the foot of the Jura Mountains, offers diverse terrain. You'll find everything from easy green runs and machine-groomed trails to more technical singletracks, downhill sections, and routes with significant elevation changes. Expect elements like berms, jumps, drops, rock gardens, and bridges on some trails, providing a dynamic riding experience.

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

Yes, Gex offers several options suitable for families or those looking for an easier ride. The region has 39 easy-rated trails. While specific family-designated routes aren't detailed, trails like the 'Voie verte Grilly-Gex' are known for being green difficulty and machine-groomed, making them suitable for various skill levels, including families.

Are there mountain bike trails with good viewpoints in Gex?

Absolutely. Many trails in Gex offer elevated viewpoints and panoramic vistas, particularly those in the Mont Mourex area. For example, the Les Rochassons trail – View from Mont Mourex loop from Gex is known for its views from Mont Mourex. Another challenging option with potential views is the Return to Gex by bike – View of Mont Blanc loop from Divonne-les-Bains, which can offer glimpses of Mont Blanc on clear days.

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

The mountain bike trails in Gex are highly rated by the komoot community, with an average score of 4.3 stars from over 300 reviews. Riders often praise the varied topography, the challenging nature of some singletracks, and the scenic beauty of the Jura Mountain foothills. The dynamic riding experience, featuring elements like berms and jumps, is also frequently highlighted.

Are there any circular mountain bike routes in Gex?

Yes, many of the mountain bike routes around Gex are designed as loops, allowing you to start and finish in the same location. Examples include the popular Les Rochassons trail – View from Mont Mourex loop from Gex, or the more challenging Fierney – Crozet Pass loop from Ségny.

What are some challenging mountain bike trails for advanced riders in Gex?

For advanced riders seeking a challenge, Gex offers 40 difficult-rated trails. Notable options include the Fierney – Crozet Pass loop from Ségny, which is a substantial 63 km route with significant elevation gain. Another demanding trail is the Crozet Pass – Fierney loop from Échenevex, featuring over 1700 meters of ascent.

What natural attractions or landmarks can I see near the mountain bike trails in Gex?

The Gex region, being at the foot of the Jura Mountains, is rich in natural features. You can explore various summits and mountain passes. Notable attractions include the Grand Montrond, Crêt de la Neige, and Le Reculet Summit. Mountain passes like Col de la Faucille (1323 m) and Crozet Pass also offer scenic points of interest.

Are there any downhill-focused mountain bike trails in the Gex area?

Yes, the Gex region is known for some downhill-focused trails. The 'Variante DH - Enduro Disse' is specifically mentioned as a downhill-focused option. Additionally, the Fierney – The Paco downhill mountain bike track loop from Crozet incorporates a dedicated downhill track, offering an exhilarating experience for riders.

How long do mountain bike trails in Gex typically take to complete?

The duration of mountain bike trails in Gex varies significantly depending on their length and difficulty. Shorter, moderate loops like the Mountainbike loop from Échenevex (14.5 km) can be completed in about 1 hour 32 minutes. Longer, more difficult routes, such as the Fierney – Crozet Pass loop from Ségny (63 km), can take over 5 hours.

What is the best time of year for mountain biking in Gex?

While specific seasonal recommendations are not detailed, the region's mountainous nature suggests that spring through autumn would generally offer the best conditions for mountain biking. During these seasons, trails are typically free of snow and ice, and the weather is more conducive to outdoor activities. Winter mountain biking might be possible on lower elevation trails, but higher routes in the Jura Mountains would likely be impacted by snow.

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Didn’t find what you were looking for?

Check out more MTB trails throughout Gex below and find the perfect route in your destination.

Réserve naturelle de la haute chaîne du JuraLac de DivonneGrillySaint-Genis-PouillySaint-Jean-De-GonvilleFargesChézery-ForensDivonne-Les-BainsLéazCollongesConfortPougnyLancransSauvernyOrnexPéronThoiryVesancyLélexPrévessin-MoënsChevryÉchenevexVersonnexSégnySergyFerney-VoltaireMijouxCessyChallexCrozet

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