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Routes
Gravel rides
France
Auvergne Rhône Alpes
Grenoble

Crolles

The best gravel rides around Crolles

4.8

(38)

210

riders

27

rides

Gravel biking around Crolles offers diverse terrain at the foot of the Chartreuse Massif, overlooking the Grésivaudan valley. The region features mountainous landscapes with prominent peaks like the Dent de Crolles and Chamechaude, providing varied elevation changes. Cyclists can navigate challenging climbs and more accessible paths through the Chartreuse Regional Natural Park. This environment combines demanding routes with scenic trails across natural settings.

Best gravel bike trails around Crolles

  • The most popular gravel bike trail is Marcieu Pass (1,060 m)…

Last updated: May 22, 2026

4.7

(3)

28

riders

#1.

Flat gravel path – Isère Bend Near Grenoble loop from Bernin

50.8km

02:34

130m

120m

Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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Moderate

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard
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Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard

Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

Easy

Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

Easy
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Tips from the Community

DavidR
April 30, 2026, View of the Isère River and the Vercors Mountains

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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The trail this year is asphalted

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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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Gravel section with 40mm tires. (Caracal Hutchinson) In a very dry period (end of June), nothing to complain about in the St Hilaire/Col de Marcieu direction.

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Conditionally recommended: Definitely recommended on a mountain bike. Relatively bumpy on a gravel bike. But doable with 45-inch tires and 2.5 bar pressure. There are few views along the trail, however, as it leads through dense forest.

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Beautiful pass. Relatively steep climbs from the valley. There are rest stops at the top.

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there we are finally almost out of the city

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No problem easy and pleasant.

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Frequently Asked Questions

How many gravel bike trails are available around Crolles?

Crolles offers a wide selection of gravel biking routes, with nearly 60 trails available on komoot. These routes cater to various skill levels, from easy rides to challenging mountainous ascents.

What kind of terrain can I expect on gravel bike trails near Crolles?

The terrain around Crolles is incredibly diverse, ranging from challenging mountainous routes at the foot of the Chartreuse Massif to more accessible, often paved, paths through the Grésivaudan valley and within the Chartreuse Regional Natural Park. You'll encounter significant elevation changes on routes like the Marcieu Pass loop, as well as flatter sections like the green track du billard loop.

Are there any easy gravel bike trails suitable for beginners in Crolles?

Yes, Crolles offers several easier gravel routes. For instance, the Alte Kapelle – Gravel Isere loop from Bernin is rated as easy, providing a more gentle introduction to gravel biking in the area. There are 7 easy routes in total, perfect for those looking for a less strenuous ride.

What are some notable natural features or landmarks to see while gravel biking in Crolles?

The region is rich in natural beauty and landmarks. You can cycle past prominent peaks like the Dent de Crolles and Chamechaude, or explore the stunning Saint-Même Cirque Waterfalls. The Col de Porte also offers a challenging ascent with rewarding views.

Are there any circular gravel bike routes around Crolles?

Many of the gravel bike trails around Crolles are designed as loops, allowing you to start and finish in the same location. Examples include the challenging Saint-Hilaire-du-Touvet – Saint-Pancrasse loop and the longer La Pérérée – Col des Mouilles loop, which offers extensive views of the Chartreuse Massif.

What do other gravel bikers say about the trails in Crolles?

The gravel biking routes in Crolles are highly regarded by the komoot community, holding an average rating of 4.8 out of 5 stars from over 30 reviews. Cyclists frequently praise the varied terrain, from demanding climbs to scenic, accessible paths, and the stunning natural beauty of the Chartreuse Massif and Grésivaudan valley.

Can I find routes with significant elevation gain for a challenging ride?

Absolutely. Crolles is situated at the foot of the Chartreuse Massif, offering numerous routes with substantial elevation gain. For instance, the Marcieu Pass (1,060 m) – Saint Hilaire du Touvet loop involves significant climbing, and the La Pérérée – Col des Mouilles loop features over 1,300 meters of ascent, providing a true test for experienced riders.

Are there any routes that pass through the Chartreuse Regional Natural Park?

Yes, many gravel routes in Crolles extend into or offer views of the Chartreuse Regional Natural Park. This park provides a wide array of varied landscapes and unspoiled nature, making it a central feature of the gravel biking experience in the region. Routes often traverse its edges or offer panoramic vistas of its peaks.

What is the best time of year for gravel biking in Crolles?

Crolles offers excellent gravel biking opportunities throughout much of the year. Spring and autumn generally provide pleasant temperatures and vibrant scenery. While some higher mountain passes like the Col de Porte can be challenging in winter due to snow, many lower-lying paths remain accessible, allowing for year-round exploration depending on conditions.

Are there any routes that offer views of the Grésivaudan valley?

Many gravel bike trails around Crolles provide stunning views of the Grésivaudan valley. The town's strategic location at the foot of the Chartreuse Massif means that as you gain elevation, you'll often be rewarded with expansive panoramas across this picturesque valley, making for a very scenic ride.

What kind of facilities can I expect along the gravel routes, such as cafes or pubs?

While specific cafes or pubs directly on every trail are not guaranteed, Crolles and the surrounding villages offer various amenities. It's advisable to plan your route and check for stops in towns like Bernin or Saint-Hilaire-du-Touvet, which are common starting points or pass-through locations for many komoot tours.

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