The best traffic-free bike rides around Crolles

There are 10 dedicated no-traffic road cycling routes around Crolles featured in this guide. These routes offer a range of difficulties, from easy valley rides to challenging mountain ascents.

The routes around Crolles offer diverse terrain. You'll find gentle, flat sections in the Grésivaudan valley, such as the Lovely road in the valley – Basin of Le Cheylas loop from Le Touvet, as well as significant climbs into the Chartreuse and Belledonne massifs. Expect well-paved roads, but some segments might be unpaved, especially on higher mountain passes. The region is known for its dramatic alpine scenery.

Yes, there are easy routes perfect for a relaxed ride. For instance, the Hamlet of Cherlieu – Saint-Pierre-de-Chartreuse loop from Saint-Pierre-de-Chartreuse is an easy option, covering about 16.8 km with moderate elevation gain. These routes are ideal for enjoying the scenery without intense physical demands.

For experienced riders seeking a challenge, the region offers routes with significant climbs. The Marcieu Pass – Saint-Hilaire-du-Touvet loop from Saint-Hilaire-du-Touvet is a difficult route spanning over 50 km with nearly 1,200 meters of elevation gain, testing your fitness amidst stunning mountain landscapes.

The routes often provide views of the iconic Dent de Crolles mountain and the surrounding Chartreuse and Belledonne massifs. You might also encounter various natural attractions. For example, you could explore nearby waterfalls like the Saint-Même Cirque Waterfalls or the Dioux Waterfall, which are popular highlights in the area.

The komoot community highly rates the road cycling experience around Crolles, with an average score of 4.48 stars. Cyclists frequently praise the breathtaking views of the Chartreuse and Belledonne mountains, the challenging yet rewarding climbs, and the opportunity to ride on quiet roads away from heavy traffic, especially on routes like the Saint-Hugues-de-Chartreuse – Col du Coq loop from Martinière.

Yes, many of the no-traffic road cycling routes around Crolles are circular, allowing you to start and end at the same point. Examples include the Lovely road in the valley – belle via the new route loop from Brignoud, which offers a pleasant loop through the valley.

The best time for road cycling in Crolles is typically from spring to autumn (May to October). During these months, the weather is generally mild, and mountain passes are clear of snow. Summer offers warm temperatures, while spring and autumn provide vibrant foliage and cooler conditions, ideal for longer rides. Always check local weather forecasts before heading out, especially for higher elevations.

Crolles is well-connected by public transport, being approximately 20 km northeast of Grenoble. You can often reach starting points of routes by local bus services or regional trains, making it convenient to access the cycling areas without a car. Check local transport schedules for specific route access points.

While these routes focus on no-traffic roads, many pass through or near small villages and towns where you can find cafes, bakeries, and restaurants. In the Chartreuse Regional Natural Park, you might also encounter huts and cabins like the Habert of Chamechaude, which can offer a place to rest or even stay overnight, depending on their facilities.

Generally, no special permits are required for road cycling on public roads within the Chartreuse Regional Natural Park. However, always respect local signage, especially concerning protected areas, private property, and any temporary restrictions. It's good practice to be aware of the park's guidelines for outdoor activities to ensure minimal impact on the environment.