4.7
(13)
85
riders
7
rides
Gravel biking around Theys, situated at 650 meters altitude in the Isère department of France, offers access to the Balcon de Belledonne mountain range. The region features diverse terrain, including challenging routes with significant elevation changes and vast pastoral areas towards the Col du Merdaret. Routes often combine paved and unpaved surfaces, such as gravel roads, dirt tracks, and stony paths. This varied landscape provides a range of experiences for gravel cyclists.
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.
7
riders
28.6km
01:56
560m
560m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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5.0
(1)
8
riders
28.2km
01:32
60m
60m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
6
riders
61.0km
04:20
1,290m
1,290m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5
riders
51.3km
04:10
1,520m
1,520m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Theys
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 panoramic view of the valley with a viewpoint indicator
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quiet route, away from the main road
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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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Climb to the Col du Barioz via Les Fontaines and Le Charpieux. A technical climb after Les Perrins requires vigilance and some pushing. Please note: Passage after Les Perrins may be blocked during the summer by an electric sheep fence.
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there we are finally almost out of the city
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Allevard is a former spa resort nestled at the foot of Belledonne. Its quiet streets alternate between old villas, tree-lined parks, and unobstructed views of the peaks. A great starting point for exploring the surrounding area... or simply taking your time.
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There are 7 dedicated traffic-free gravel bike trails around Theys featured in this guide, offering a variety of experiences for different skill levels.
The terrain around Theys is quite varied, ranging from vast pastoral areas towards the Col du Merdaret to mountainous sections within the Balcon de Belledonne. You'll encounter a mix of gravel roads, dirt tracks, and stony paths, with some routes featuring significant elevation changes and others offering flatter, more relaxed rides along river bends.
Yes, there are several easy, traffic-free options. For a gentle ride, consider the Alte Kapelle – Gravel Isere loop from Bernin, which is rated easy and covers about 29 km with minimal elevation gain. Another easy choice is the Des Lônes Pond – Lake Lône loop from Le Cheylas, offering a pleasant 28 km ride.
Theys, situated at 650 meters, is ideal for gravel biking from spring through autumn. The warmer months offer pleasant conditions to explore the diverse terrain. While some lower elevation paths might be accessible in winter, higher mountain sections can be challenging due to snow and ice, especially in the Balcon de Belledonne range.
Yes, many of the traffic-free gravel routes around Theys are designed as loops. For example, the Flat gravel path – Isère Bend Near Grenoble loop from Bernin is a moderate 50 km circular route, perfect for a longer ride. Another great option is the Flat gravel path loop from Froges, which is also a moderate circular trail.
The region offers stunning natural beauty. While riding, you might catch glimpses of the majestic Dent de Crolles or pass near the scenic Col du Coq. For a picturesque break, consider routes that lead towards Lake Crop, known for its turquoise waters. The Allevard – View of the Flumet basin loop from Saint-Pierre-d'Allevard specifically highlights a viewpoint of the Flumet basin.
While not directly on all gravel routes, the Theys area is rich with waterfalls that can be visited as nearby attractions. Notable ones include the Gouille Waterfall, The Alloix Waterfalls, and the Pissou Waterfall. You might need to detour slightly from the main gravel paths to reach them.
The gravel biking experience around Theys is highly rated by the komoot community, with an average score of 4.5 stars. Riders frequently praise the diverse terrain, the quiet, traffic-free nature of the paths, and the stunning panoramic views of the Balcon de Belledonne.
Absolutely. For those seeking a demanding ride, the Allevard – View of the Flumet basin loop from Saint-Pierre-d'Allevard is rated as difficult, featuring significant elevation gains over its 28 km. This route will test your endurance while rewarding you with spectacular views.
Yes, starting points for many of these routes, such as Bernin, Le Cheylas, and Froges, typically offer parking facilities. It's always advisable to check local signage for specific parking regulations and availability before your ride.
Theys and its surrounding villages offer various amenities. You'll find local cafes and restaurants in the villages along or near many routes, perfect for a break. For accommodation, there are options ranging from guesthouses to small hotels, particularly in the larger towns within the Isère department, making it convenient for multi-day trips.


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