4.5
(243)
1,297
riders
103
rides
Mountain biking around Nantes-En-Rattier offers diverse terrain on the Matheysin plateau, providing extensive views of the French Alps and surrounding mountain ranges. The region features a mix of stone and ground trails, with significant elevation gains that challenge riders. Picturesque views of Lac de Petichet and various valleys, alongside the dramatic backdrop of peaks like Obiou and Grand Armet, define the landscape.
Last updated: October 4, 2026
5.0
(1)
12
riders
21.1km
03:03
1,100m
1,100m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
4.8
(8)
42
riders
44.6km
04:55
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.

4.8
(12)
41
riders
27.0km
02:42
660m
660m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4.9
(23)
23
riders
33.4km
03:38
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
riders
22.0km
01:51
310m
310m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
Get access to more routes and recommendations from other explorers.
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.
Before reaching the summit of the pass, in the alpine pasture, this water catchment is beautifully painted
0
0
Very beautiful panorama once you arrive at the Pierre Percée!
0
0
I did it on gravel, climbing via the Aveillans hill (west), it was fine. Direct descent to Putteville, very limited at the beginning on gravel, much steeper but it was fine.
0
0
1st part very smooth and very pleasant, 2nd part much more technical with a nice climb on a very greasy muddy path, steep slopes and quite technical descents. The final does not take the greenway recently set up and which allows you to avoid the road.
0
0
beautiful course, technical, D+ beautiful singles
0
0
Steep last bends from the pass on a very grassy track, it's for the strong. But the reward: What a 360° panorama at the top!
1
0
There are over 80 mountain bike trails around Nantes-En-Rattier, offering a wide range of options for all skill levels. The komoot community has explored more than 80 routes in the area.
The trails around Nantes-En-Rattier feature diverse terrain, including stone and ground surfaces. You'll find yourself on the Matheysin plateau, with significant elevation gains and varied mountain landscapes. Some routes may require pushing your bike due to their challenging nature.
Yes, there are several easier options. For a more relaxed ride, consider the View of Lac de Petichet – TO DEFINE loop from Susville. This easy 15.4-mile (24.7 km) route has a moderate elevation gain of around 900 feet (274 meters), making it suitable for those looking for a less strenuous experience.
For experienced riders seeking a challenge, Nantes-En-Rattier offers several difficult routes. The Piquet de Nantes loop from Saint-Honoré is a demanding 24.7-mile (39.7 km) trail through the Massif du Tabor, with an elevation gain of over 5,500 feet (1,687 meters). Another challenging option is the Mountainbike loop from La Mure, a 29.2-mile (46.9 km) difficult route.
The region offers breathtaking natural beauty. You can enjoy panoramic views of the French Alps, the Matheysine lakes, and prominent peaks like Obiou and Grand Armet. Specific viewpoints include The Belvedere of Alpe du Grand Serre and the View of Lake Petichet. The area also features a protected marsh zone and the impressive Vercors cliffs in the distance.
Yes, the region is known for its picturesque lakes. You can find views of Lac de Petichet along some routes, and other notable lakes in the vicinity include Lake Laffrey and Lake Brouffier. These offer scenic spots to pause and enjoy the landscape.
The mountain bike trails in Nantes-En-Rattier are highly rated by the komoot community, with an average score of 4.4 stars from over 180 reviews. Riders often praise the high mountain experience, the extensive views over the Matheysine lakes, and the diverse terrain that caters to various skill levels.
Given the region's high mountain characteristics and potential for significant elevation, the best time for mountain biking is typically from late spring through early autumn. This period generally offers more favorable weather conditions and clear trails, avoiding snow and ice at higher altitudes.
Beyond the natural beauty, you can explore the ruins of Rattier castle, which offers a historical point of interest. The name 'Rattier' itself is Celtic for a fortified hill, hinting at the area's long history.
Yes, many of the trails are designed as loops. For instance, the Boucle de Pique de Nantes is a popular 13.1-mile (21.1 km) circular route offering challenging climbs and descents. Another option is the View of the French Alps – Le Sénépy loop from La Mure, a 21.4-mile (34.5 km) loop with panoramic vistas.
While specific public transport links directly to trailheads might be limited, Nantes-En-Rattier is located in the Isère department, which has regional transport options. It's advisable to check local bus schedules or consider driving to access the various starting points for the mountain bike trails.


Browse the best MTB trails in other regions.