Serrières-sur-Ain to Bourg-en-Bresse via Col de la Roche Motorcycle Route

The route starts in the village of Serrières-sur-Ain and ends in the town of Bourg-en-Bresse, both located in the Auvergne-Rhône-Alpes region of France. The total length of the road is approximately 14.6 kilometers (9.1 miles). This road traverses a varied landscape with elevations ranging from 284 meters (932 feet) to 430 meters (1,411 feet), including the mountain pass known as Col de la Roche. The route passes through several settlements and connects key local roads such as Route de Nantua, Route du Berthiand, and Route de Bourg. An interactive map showing the road can be found at the end of the article.

The road surface is asphalt and is maintained to a high standard, rated 4.5 out of 5 for quality. The route is moderately curvy, providing a balanced riding experience without extreme twists. The road width is predominantly wide (about 82%), with middle-width sections making up 13% and narrow sections about 4%. The road mostly consists of two lanes (about 96%), with a very small portion being single lane (about 1%). Approximately 17.1% of the route passes through inhabited areas, which may require reduced speeds and increased caution.

Speed limits along the route vary according to the road section and surrounding environment. The maximum allowed speeds are 80 km/h (50 mph), 70 km/h (43 mph), 50 km/h (31 mph), and 30 km/h (19 mph) depending on the specific segment. Riders should be attentive to these limits, especially when passing through inhabited areas or near the mountain pass. The road is suitable for motorcycle touring, offering a mix of open stretches and gentle curves.

The route includes the mountain pass Col de la Roche, which is a notable feature of this road. The pass reaches an elevation of 430 meters (1,411 feet) and provides a moderate ascent and descent along the route. This section is well-paved and offers a pleasant riding experience without extreme gradients or sharp hairpins. The Col de la Roche is a recognized name among local riders and contributes to the route's appeal for motorcyclists exploring the Auvergne-Rhône-Alpes region.

This article focuses on the road section between Serrières-sur-Ain and Bourg-en-Bresse, as shown on the map below. Riders planning to explore this route should consider seasonal weather conditions, as mountain pass roads in this region may be subject to closures or restrictions during winter months. There are currently no tolls or entrance fees on this road, but conditions may change, so checking local traffic authorities' websites is advisable. For more information about road tolls in France, visit the official French road toll information site.