4.8
(24)
156
riders
8
rides
Gravel biking around Crolles offers diverse terrain at the foot of the Chartreuse Massif, within the Isère Valley. The region is characterized by dramatic limestone cliffs, extensive forests, and the wide, picturesque Grésivaudan Valley. Cyclists can find routes ranging from flat paths along the Isère River to more challenging ascents in the mountain foothills. This varied landscape provides a rich environment for no traffic gravel bike trails.
Last updated: May 5, 2026
4.7
(3)
28
riders
50.8km
02:34
130m
120m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.7
(15)
98
riders
66.7km
03:11
130m
130m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Sign up for free
5.0
(1)
10
riders
28.1km
01:28
110m
110m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
2
riders
25.6km
02:01
800m
800m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
Get access to more routes and recommendations from other explorers.
Sign up for free
Already have an account?
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
Start today with a free account
Your next adventure awaits.
Login or Signup
Popular around Crolles
It is indeed Chartreuse. There is also a "must-see" that presents "a magnificent view" of Chartreuse when it is actually Belledonne!!
0
0
Very pretty, but it's not the Vercors, it's the Chartreuse, Mont St Eynard to be exact.
0
0
there we are finally almost out of the city
0
0
In Grenoble, don't miss a stroll along the Isère River. The well-maintained banks offer beautiful cycle paths for exploring the water.
0
0
There are 6 dedicated no-traffic gravel bike trails around Crolles featured in this guide. These routes offer a mix of easy, moderate, and difficult options, ensuring there's something for every skill level.
Yes, Crolles offers several easy, traffic-free gravel routes perfect for families or beginners. The Alte Kapelle – Gravel Isere loop from Bernin is an excellent choice, providing a gentle ride along the Isère Valley. Another great option is the Gravelroad next to the river loop from Montbonnot-Saint-Martin, which also offers a relaxed experience.
The terrain around Crolles is quite varied. You'll find flat paths along the Isère Valley, like the Flat gravel path – Isère Bend Near Grenoble loop from Bernin, which are generally smooth. As you venture towards the Chartreuse and Belledonne mountain ranges, routes become more challenging with significant elevation changes and potentially bumpier surfaces, though still passable with appropriate gravel tires.
Yes, many of the no-traffic gravel bike trails around Crolles are designed as loops. For example, the Flat gravel path loop from Froges offers a moderate circular ride, while the Saint-Pierre-de-Chartreuse loop from Saint-Pierre-de-Chartreuse provides a more difficult, scenic circular challenge within the Chartreuse Massif.
The Crolles area is rich in natural beauty. You can encounter stunning features like the Saint-Même Cirque Waterfalls, offering a dramatic natural setting. The iconic Dent de Crolles, a prominent karstic mountain, is often visible from many routes and is a significant landmark. The region also features several scenic mountain passes like Bellefont Pass.
Spring and autumn generally offer the most pleasant conditions for gravel biking in Crolles, with mild temperatures and vibrant scenery. Summer can be warm, especially in the valley, but higher-altitude routes in the Chartreuse Massif provide cooler air. Winter biking is possible, but some higher trails may be affected by snow, making lower valley routes more suitable.
Crolles is situated in the Isère Valley, which has public transport links. While direct access to every trailhead might vary, you can often reach starting points in towns like Bernin or Montbonnot-Saint-Martin via local bus services, which connect to larger transport hubs. It's advisable to check specific route access and bike carriage policies with local transport providers.
Yes, for experienced gravel bikers seeking a challenge, the region offers more demanding routes. The Saint-Pierre-de-Chartreuse loop from Saint-Pierre-de-Chartreuse is classified as difficult, featuring significant elevation gain (over 800m) and traversing the rugged terrain of the Chartreuse Massif, providing a rewarding experience for advanced riders.
The gravel bike trails around Crolles are highly rated by the komoot community, with an average score of 4.6 stars. Reviewers frequently praise the diverse landscapes, from the flat, quiet paths along the Isère Valley to the more challenging ascents and stunning views in the Chartreuse mountains. The traffic-free nature of these routes is consistently highlighted as a major benefit, allowing for a peaceful and immersive cycling experience.
Absolutely. The region around Crolles, nestled between the Chartreuse and Belledonne massifs, offers numerous scenic viewpoints. Routes often provide expansive vistas of the Isère Valley and the surrounding mountains. The iconic Dent de Crolles itself is a prominent feature, and many trails offer breathtaking perspectives of this 'tooth-like' mountain and the dramatic limestone cliffs of the Chartreuse.
Many of the trailheads in and around Crolles, especially in towns like Bernin, Montbonnot-Saint-Martin, and Froges, offer accessible parking options. Given the focus on no-traffic routes, these starting points are typically chosen for their convenience and separation from busy roads, making it easier to find a spot to begin your ride.


Browse the best Gravel rides in other regions.