4.3
(848)
5,691
riders
254
rides
Mountain biking around Montbonnot-Saint-Martin offers access to diverse terrain within the Isère department, situated near Grenoble, often referred to as the "Capital of the Alps." The region is characterized by its mountainous landscapes, bordered by the Chartreuse massif to the north, the Vercors to the west, and the Belledonne range to the east. This setting provides significant elevation changes and varied natural features, including prominent peaks and passes suitable for mountain biking.
Last updated: May 4, 2026
4.0
(4)
57
riders
27.0km
02:54
1,060m
1,060m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
3.4
(5)
32
riders
22.9km
02:29
990m
990m
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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29
riders
19.4km
02:00
720m
720m
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
(2)
38
riders
37.0km
03:18
1,220m
1,220m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
4.2
(5)
27
riders
24.9km
02:57
1,030m
1,030m
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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The appeal of climbing Rachais lies in these ridges. They offer views of the Chartreuse mountains and invite you to venture further into the massif.
0
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Single track in the undergrowth, not too technical and very pleasant
0
0
small pass between Corenc and Sapey. The road is very good
0
0
Exceptional site at the foot of the Dent de Crolle with access via a wild forest road
2
0
Quite a bit of traffic from Corenc, calmer from Clémencières.
0
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Perched at 1,434 meters, the Col du Coq is accessible after a twelve-kilometer climb regardless of the direction of the road taken. It offers a beautiful view of the Dent de Crolles.
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A pass with little crowds (end of April 2024). The road is open despite the signs (no snow removal). The bitumen is correct, average in places (mounted in Gravel). A few very steep slopes with a small flat area which allows you to breathe on the Charteuse side. No infrastructure at the top. Road and bitumen in good condition on the St-Pacrasse side.
2
1
There are over 250 mountain bike trails around Montbonnot-Saint-Martin, offering a wide variety of options for different skill levels and preferences.
The region offers a diverse range of difficulties. While there are 12 easy routes and 36 moderate routes, the majority of trails, over 200, are classified as difficult. This reflects the mountainous terrain provided by the surrounding Chartreuse, Vercors, and Belledonne massifs.
You can expect varied terrain, from river valleys to challenging alpine passes. The region is characterized by significant elevation changes, with routes traversing the dramatic landscapes of the Chartreuse, Vercors, and Belledonne massifs. This includes steep ascents, technical descents, and scenic paths along the Isère River.
Yes, there are trails suitable for beginners. While many routes are challenging, you can find easier options, such as the View of the Isère River – Flat gravel path loop from Domène, which is a moderate, mostly flat gravel path. There are 12 easy routes available in total.
The trails offer stunning views of the surrounding massifs. You can encounter prominent peaks like Chamechaude and Dent de Crolles, the highest summits of the Chartreuse massif. The region also features mountain passes such as Col de Porte and picturesque spots like Lac du Crozet, perched at 1,974 meters.
Many trails offer exceptional panoramic views. For instance, the View of Grenoble loop from Meylan provides extensive vistas of the Grenoble area. Other routes explore ridges, offering expansive views over the Grésivaudan valley and the surrounding alpine landscape.
The best time for mountain biking is generally from spring through autumn. During these seasons, the weather is more stable, and trails are typically free of snow, especially at higher elevations. Summer offers warmer temperatures, while spring and autumn provide cooler rides and vibrant scenery.
Yes, there are options for families. Routes like the View of the Isère River – Flat gravel path loop from Domène are moderate and feature flat gravel paths, making them suitable for families looking for a less strenuous ride. It's always recommended to check the specific trail difficulty before heading out with children.
Many trails in the Montbonnot-Saint-Martin area are dog-friendly, especially those in natural park areas, provided dogs are kept on a leash to protect wildlife and ensure the safety of other trail users. Always check local regulations for specific trails or protected areas before bringing your dog.
The mountain bike trails in Montbonnot-Saint-Martin are highly rated by the komoot community, with an average score of 4.3 stars from over 700 reviews. Riders often praise the diverse terrain, the challenging ascents and descents, and the breathtaking views of the surrounding massifs.
Yes, many of the mountain bike routes around Montbonnot-Saint-Martin are designed as loops. Examples include the View of Grenoble loop from Meylan, the Mont Jalla's ridges – Full Serlin loop from Meylan, and the View of the Isère River – Flat gravel path loop from Domène, offering convenient starting and ending points.
Absolutely. The region is well-suited for experienced riders, with over 200 trails classified as difficult. Routes like the Mont Jalla's ridges – Full Serlin loop from Meylan and the Col du Coq – Col du Coq loop from Meylan offer significant elevation gains and technical sections, exploring the challenging terrain of the Chartreuse and Belledonne massifs.


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