4.4
(721)
4,944
riders
11
rides
Mountain biking around Saint-Martin-D'Hères offers access to diverse terrain at the foot of the Belledonne, Chartreuse, and Vercors massifs. The region features a mix of forests, river valleys, and significant elevation changes, providing varied routes for mountain bikers. Trails range from paths along the Isère river to more challenging ascents into the surrounding hills and mountains. This area serves as a gateway to extensive mountain biking networks with varied landscapes.
Last updated: May 20, 2026
4.2
(26)
151
riders
26.7km
02:34
810m
810m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
4.0
(4)
56
riders
18.1km
01:44
590m
590m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

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4.5
(2)
45
riders
23.5km
02:37
770m
770m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
3.0
(4)
30
riders
25.5km
01:57
600m
600m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4.3
(3)
29
riders
35.4km
03:09
950m
950m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
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Popular around Saint-Martin-D'Hères
Very well-maintained technical singletrack between the trees. Relatively accessible. I went there ;-)
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A good single, not too technical.
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nice climb up to the intersection...then the road going to the fort is cleaner depending on the day (twigs, bread needles...)
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The castle is not open to the public. It's a shame, as the site is exceptional. The earliest remains date back to the 14th century, when the castle was owned by the Bishop of Grenoble. Today, it is privately owned.
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Nice sequence after Venon's DH. less steep therefore more accessible
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Very pleasant pass, because almost no cars, lots of shade and fantastic landscapes 9 km long and 680 m vertical drop
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The fort of the 4 lords cannot be visited, the access road is in a dead end
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There are 13 mountain bike trails around Saint-Martin-D'Hères listed on komoot, offering a variety of experiences. Most of these, 10 to be exact, are rated as difficult, with 3 moderate options also available.
The terrain around Saint-Martin-D'Hères is highly varied due to its proximity to the Belledonne, Chartreuse, and Vercors massifs. You can expect a mix of forested hillsides, paths along the Isère river, and significant ascents into the mountains. Trails range from technical descents with natural obstacles to more gentle routes through valleys and along riverbanks.
While most trails are rated difficult, there are 3 moderate mountain bike routes available. For instance, the Le Mûrier - Romage – Chemin du Bois du Fournet loop from Grenoble is a moderate 24.9 km trail through forested hillsides, offering a less strenuous option compared to the more challenging ascents in the region.
Spring and autumn are generally considered the best times for mountain biking in the region, particularly in the Chartreuse Massif, due to pleasant temperatures and vibrant scenery. Summer can also be good, especially at higher altitudes, but be mindful of potential heat in lower valleys.
The region offers stunning natural beauty. You can encounter various peaks and natural monuments. Notable highlights include The Moucherotte Summit, Four Lords Pass, and the Coup de Sabre Gorge. These offer breathtaking views and unique geological formations along your rides.
For families looking for less strenuous options, consider routes with minimal elevation gain. The Edge of Isère – green track du billard loop from Saint-Martin-d'Hères, for example, is a 19.4 km trail with very little elevation, making it potentially more accessible for a family outing, though it is rated difficult in terms of technicality. The Vercors Massif also offers the 'Via Vercors' route, designed for gentle travel, connecting villages and showcasing local landscapes.
The mountain bike trails around Saint-Martin-D'Hères are highly rated by the komoot community, with an average score of 4.4 stars from over 800 reviews. Over 5,800 mountain bikers have explored the varied terrain, often praising the diverse landscapes and challenging ascents into the surrounding massifs.
Yes, many of the trails are designed as loops, allowing you to start and end at the same point. Examples include the popular Le Mûrier - Romage – Le Chemin du Mûrier loop from Grenoble and the challenging Les Quatre Seigneurs – Fort of the Four Lords loop from Eybens, both offering extensive circular rides.
Saint-Martin-D'Hères is well-connected to Grenoble, which serves as a hub for public transport. Many trails are accessible from or near urban centers. For specific routes, you would need to check local bus or tram services that connect to trailheads. The region's focus on accessibility means many starting points are within reach of public transport networks.
Many trailheads, especially those starting from towns like Grenoble or Eybens, offer designated parking areas. For instance, routes like the Bridge over the Isère – Grenoble loop from Grenoble would typically have parking available near their starting points in or around Grenoble. It's advisable to check specific route details for precise parking information.
Yes, bike rental services are available in Saint-Martin-D'Hères and the wider Grenoble area. This makes it convenient for visitors to access the necessary equipment, including electric-assist mountain bikes (EABs), which are popular for covering longer distances and tackling challenging terrain with less fatigue.
While general access to trails is often free, specific regulations might apply in protected areas like the Chartreuse Regional Natural Park or the Vercors Massif. It's always recommended to respect local signage and guidelines, especially concerning trail usage, environmental protection, and private land. No specific permits are generally required for casual mountain biking on marked trails.


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