4.5
(285)
6,642
riders
21
rides
No traffic road cycling routes around Saint-Julien-De-Raz traverse a varied landscape characterized by challenging terrain, including significant elevation gains and scenic gorges. The region is situated near the Chartreuse Regional Natural Park, offering a backdrop of ridges, alpine pastures, and forests. Road cycling paths often follow paved surfaces through valleys and past natural features, providing diverse experiences for cyclists.
Last updated: May 5, 2026
4.5
(51)
865
riders
43.9km
01:41
80m
80m
Moderate road ride. Great for any fitness level. Some segments of this route may be unpaved and difficult to ride.
3.0
(1)
172
riders
27.6km
01:32
550m
550m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

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4.1
(8)
64
riders
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
4.0
(1)
40
riders
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
5.0
(1)
53
riders
64.1km
03:19
1,120m
1,120m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
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Popular around Saint-Julien-De-Raz
A superb climb which leads us to a magnificent view of the Chartreuse mountains, much more beautiful than at the summit of the Col des Mille Martyrs, and yet much less known!
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Here is the route for the ascent of the Col de Parménie starting from Tullins
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Here is the route for the ascent of the Col des Mille Martyrs starting from Saint-Nicolas-de-Macherin
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The church was built between 1902 and 1911. The use of concrete imitating stone is remarkable.
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Very good for a restart, to be done regularly the first few weeks 😊
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This cycle path connects Grenoble to Valence along the Isère River. It's flat, a little boring, but car-free.
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1.5km for 150m of elevation gain. As soon as you leave the Col de Parménie, the gradient starts at 12%, then quickly increases to 14% and then climbs to 17%. It calms down a bit after the bend. The road is in good condition, relatively wide, and with little traffic (it's a dead end), which allows you to maneuver to cope with the slope.
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Not far from Vorreppe, the Isère River flows around the Bec de l'Échaillon, which overlooks it at an altitude of 622 meters. This meander offers a magnificent view of this Vercors peak.
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There are over 25 dedicated no traffic road cycling routes around Saint-Julien-De-Raz, offering a variety of distances and difficulty levels for cyclists to explore the region safely and serenely.
Yes, Saint-Julien-De-Raz offers several easy no traffic road cycling routes. For instance, the Along the Isère – Saint-Égrève Dam-Bridge loop from Moirans-Galifette is an easy option, covering about 30 km with minimal elevation gain. Another gentle choice is the V63 cycle route – Isère cycle route loop from Voreppe, which is around 42 km long and also features low elevation.
The no traffic road cycling routes around Saint-Julien-De-Raz offer varied terrain. While many routes are on paved surfaces, you can expect everything from flat sections along river valleys, such as those along the Isère, to challenging climbs with significant elevation gains, especially as you approach the Chartreuse Regional Natural Park. The region is known for its diverse topography, catering to different fitness levels.
Absolutely. For experienced riders seeking a challenge, the region provides routes with substantial elevation. The Gorges du Nan – Col de Romeyère loop from Voreppe is a difficult route spanning over 90 km with nearly 2000 meters of elevation gain, offering a demanding experience through scenic gorges and mountain passes.
The region is rich in natural beauty. You can encounter stunning natural features like the Gorges du Guiers Mort or the Gorges du Crossey. For panoramic views, consider routes that offer glimpses of summits like Charmant Som summit or La Pinéa, both within the Chartreuse Regional Natural Park.
Yes, many of the no traffic road cycling routes around Saint-Julien-De-Raz are designed as circular loops, allowing you to start and end at the same point. Examples include the Along the Isère – La Belle Via in Saint-Égrève loop from Moirans and the Col des Mille Martyrs loop from Saint-Nicolas-de-Macherin.
The area is highly rated by the komoot community, with an average score of 4.5 stars. Reviewers often praise the stunning natural landscapes, the challenge of the mountain passes, and the opportunity to cycle on quiet, traffic-free roads through the beautiful Isère region and the Chartreuse Regional Natural Park.
Yes, the region is known for its challenging mountain passes. The Col des Mille Martyrs loop from Saint-Nicolas-de-Macherin is a moderate route that incorporates the Col des Mille Martyrs. Other passes like Col de Porte (1326 m) and Charmette Pass are also prominent features in the wider area, offering demanding climbs and rewarding views.
Yes, you can find pleasant no traffic routes that follow waterways. The Along the Isère – La Belle Via in Saint-Égrève loop from Moirans is a great example, offering a scenic ride along the Isère river with minimal elevation changes, perfect for a relaxed outing.
While specific conditions vary, spring through autumn generally offers the most favorable weather for road cycling in Saint-Julien-De-Raz. During these seasons, temperatures are pleasant, and the natural landscapes of the Chartreuse Regional Natural Park are at their most vibrant. Some higher mountain passes may be inaccessible due to snow in winter or early spring.
While the focus is on natural beauty and traffic-free roads, some routes may pass near or through charming villages. For instance, the town of Saint-Pierre-de-Chartreuse, known for its monastic history, is a notable point of interest in the wider region that can be explored in conjunction with cycling routes.


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