4.6
(104)
649
riders
15
rides
Gravel biking around Montbonnot-Saint-Martin offers a diverse landscape for cyclists, characterized by its proximity to the Isère river and the Chartreuse massif. The region features a mix of flat riverine paths, rolling hills, and more challenging ascents into mountainous terrain. Trails often combine paved sections with unpaved paths, providing varied surfaces for no traffic gravel bike trails.
Last updated: October 6, 2026
4.7
(38)
177
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.8
(24)
122
riders
25.2km
01:12
40m
40m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

4.8
(4)
24
riders
27.4km
02:09
720m
720m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.
5.0
(5)
19
riders
42.1km
02:00
80m
80m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
23
riders
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Montbonnot-Saint-Martin
It is indeed Chartreuse. There is also a "must-see" that presents "a magnificent view" of Chartreuse when it is actually Belledonne!!
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A good single, not too technical.
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Very pretty, but it's not the Vercors, it's the Chartreuse, Mont St Eynard to be exact.
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The place is fresh and green. You can take a little snack break there.
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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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there we are finally almost out of the city
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There are 15 dedicated no-traffic gravel bike trails around Montbonnot-Saint-Martin. These routes offer a diverse range of experiences, from easy riverside paths to more challenging mountain ascents, all designed to keep you away from vehicle traffic.
The terrain around Montbonnot-Saint-Martin is quite varied. You'll find routes that combine paved sections with unpaved gravel paths, often traversing diverse landscapes. Some trails, especially those ascending towards the Bois de la Souchière or in the Chartreuse massif, will feature significant elevation changes and more rugged gravel, while others, like those along the Isère river, are flatter and more accessible.
Yes, there are several easier options suitable for families. For a relatively flat ride with minimal elevation, consider the Island of Love Park – Meylan Footbridge loop from Grenoble. This route offers a pleasant experience away from traffic, perfect for a relaxed family outing.
The region is rich in natural beauty. Many routes offer stunning views of the Chartreuse massif. You might encounter viewpoints like Revollat Cross, or even catch glimpses of significant peaks like Dent de Crolles. Some trails also pass by serene spots like Lake Crozet, offering picturesque breaks.
Absolutely. For experienced riders seeking a challenge, routes like the Mortier Tunnel Viewpoint – Montaud Summit loop from Grenoble offer significant elevation gains, reaching over 1400 meters of ascent. These trails provide demanding climbs and rewarding panoramic views.
Yes, many of the no-traffic gravel routes are designed as loops, allowing you to start and end at the same point. For example, the Superb forest trail – Downhill Champagnier loop from Eybens is a moderate circular route that takes you through beautiful forest trails.
Spring and autumn are generally the best seasons for gravel biking in Montbonnot-Saint-Martin. The weather is typically milder, and the natural scenery is vibrant. Summer can be pleasant, especially at higher elevations, but lower routes might get warm. Winter can bring snow to higher areas, making some trails impassable for gravel bikes.
While specific regulations for dogs on gravel trails can vary, many natural areas and forest paths around Montbonnot-Saint-Martin are generally dog-friendly, especially if your dog is well-behaved and kept on a leash. Always check local signage for any specific restrictions in protected areas or private lands you might cross.
The komoot community highly rates the gravel biking experience in Montbonnot-Saint-Martin, with an average score of 4.6 stars. Reviewers often praise the diverse landscapes, the tranquility of the car-free paths, and the stunning views of the Chartreuse massif. The variety of routes, catering to different skill levels, is also frequently highlighted.
Montbonnot-Saint-Martin benefits from its proximity to Grenoble, which has a well-developed public transport network. While direct access to every trailhead by public transport might require some planning, you can often use buses or trams to get close to the starting points of many routes, especially those closer to urban areas or main roads.
While the no-traffic gravel trails themselves might not have direct cafes, many routes pass through or near villages and towns where you can find places to stop for refreshments. Planning your route to include a stop in a nearby village is a great way to experience local hospitality and refuel during your ride.


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