4.5
(67)
895
riders
30
rides
Road cycling around Nantoin, situated within the commune of Porte-des-Bonnevaux in the Isère department, offers diverse landscapes for cyclists. The region features a mix of gentle plains and river valleys, particularly along the Rhône and Isère, providing scenic routes through verdant areas. Cyclists can also access the foothills of the formidable Alpine massifs, including Belledonne, Chartreuse, and Vercors, which present more challenging ascents. The terrain includes extensive forests and areas with lakes, contributing to varied cycling environments.
Last updated: July 4, 2026
4.0
(2)
18
riders
90.1km
04:30
1,010m
1,010m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
5.0
(1)
6
riders
40.1km
01:51
290m
290m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.

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4
riders
42.4km
01:54
350m
350m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
5
riders
85.4km
04:15
900m
900m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
4
riders
26.1km
01:22
280m
280m
Moderate road ride. Great for any fitness level. Some segments of this route may be unpaved and difficult to ride.
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Popular around Nantoin
Built by a silk industrialist from Lyon in the second half of the 19th century, the Saint-Siméon-de-Bressieux factory comprises two parts connected by a glass roof. Adjacent to the factory, a large pisé building housed the accommodation for the workers who, coming from afar, lodged on site during the week. This silk mill, established in a rural setting, provided work for nearly 1,000 employees. It operated until 1934. https://www.alpes-isere.com/itineraire/de-soieries-en-chateaux-5335632/ https://patrimoine.auvergnerhonealpes.fr/dossier/IA38000981
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A pass listed on 100cols, but no sign on the ground
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And Matto, it looks beautifully simple; I really like churches like this.
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This Saint-André church, which is partially listed as a historical monument, is a successful blend of Romanesque and Gothic art.
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In 1869, the Marist Brothers purchased the castle and its grounds. They raised the body of the central building by one floor. The castle was then acquired by the city in 1906. In 1914, it became a military hospital and from 1940 to 1960, a modern college. The castle now houses a music school and meeting rooms. Many areas are vacant. The Ministry and the public agency for cultural cooperation (aida) conducted a feasibility study for the establishment of a European Cultural Exchange Center in the building. If you take a walk in the park in the afternoon, you can hear the musicians practicing.
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There are over 30 dedicated no-traffic road cycling routes around Nantoin, catering to various skill levels. You'll find options ranging from easy, leisurely rides to more challenging ascents.
Yes, Nantoin offers 8 easy no-traffic road cycling routes. A great option for a more relaxed ride is the Bressieux Silk Mill – Château Louis XI loop from La Côte-Saint-André, which covers about 40 km with moderate elevation gain, making it accessible for many riders.
The region around Nantoin, part of the Isère department, offers diverse terrain. You can expect routes through gentle plains and river valleys, as well as more challenging sections with significant elevation gains as you approach the foothills of the Alpine massifs like Belledonne and Chartreuse. Many routes traverse picturesque landscapes with forests and charming architecture.
Absolutely. For experienced cyclists seeking a challenge, Nantoin provides 4 difficult no-traffic road cycling routes. Consider the Château Louis XI – Plateau des Grises loop from Gillonnay, which spans over 90 km and includes more than 1,000 meters of elevation gain, offering a demanding ride with rewarding views.
Many no-traffic routes around Nantoin pass by historical and natural points of interest. You might encounter landmarks such as Château Louis XI, the serene Notre-Dame-du-Mont Chapel, or the historic The old market hall. The broader Isère region is also known for its beautiful lakes and extensive forests.
Yes, many of the no-traffic road cycling routes around Nantoin are designed as loops, allowing you to start and finish at the same point. Examples include the Longechenal Church loop from Champier and the Château Louis XI loop from Gillonnay, providing convenient options for your ride.
The no-traffic road cycling routes around Nantoin are highly rated by the komoot community, with an average score of 4.2 out of 5 stars from 56 ratings. Reviewers often praise the quiet, picturesque lanes, the varied terrain suitable for different fitness levels, and the opportunity to explore the charming Isère countryside away from busy roads.
While Nantoin itself is in a more gentle area, the wider Isère department is famous for its challenging climbs. Some routes, like the Col des Crozes (440 m) – Château Louis XI loop from Gillonnay, incorporate smaller cols, offering a taste of the region's more mountainous character without venturing into the highest Alpine passes.
Nantoin is situated within the Isère department, which boasts an extensive network of over 850 km of signposted cycle routes. The renowned 'La Belle Via' cycle route, which traverses the Isère Valley for 123 km, offers sections that are largely traffic-free and connects various towns and natural beauty spots, providing opportunities to link up with broader regional cycling experiences.
The spring and autumn months generally offer the most pleasant conditions for road cycling around Nantoin, with mild temperatures and beautiful scenery. Summer can also be excellent, though it's advisable to start earlier in the day to avoid the midday heat. Winter cycling is possible, but some higher elevation routes might be affected by colder weather or occasional snow.
Yes, for those looking for longer rides, there are several options. The Château Louis XI – Plateau des Grises loop from Gillonnay is a substantial route covering over 90 km. You can also combine shorter loops or explore sections of the regional cycling networks like La Belle Via for extended, traffic-free adventures.


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