4.5
(138)
4,000
riders
21
rides
No traffic road cycling routes around Lassy are situated in a picturesque region south of Rennes, France, characterized by the tranquil Canut Valley. This area features extensive woods, lush meadows, and varied moorlands, offering a scenic environment for cycling. The terrain generally includes gentle undulations suitable for road biking, with some routes incorporating minor hills. The natural landscape provides a peaceful setting for exploring the countryside on two wheels.
Last updated: July 3, 2026
4.9
(9)
62
riders
50.6km
02:17
460m
460m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
3.7
(3)
48
riders
57.6km
02:33
340m
340m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

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5.0
(2)
9
riders
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
13
riders
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
10
riders
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
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Popular around Lassy
The Château de Thiers-sur-Thève, now in ruins, is a former 13th-century fortified castle listed as a Historic Monument in 1862. Built as a hunting lodge for the bishops of Beauvais, it is distinguished by its large state room pierced with large windows, a rare example of medieval residential architecture in the Île-de-France region. Partially dismantled in the 15th century, its circular towers, moats, and Gothic remains can still be admired.
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Beautiful forest. Road in good condition.
1
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Nice, yes, calm and peaceful... 4 km in line with the runway of CDG airport, the noise of planes taking off every 2 minutes at an altitude of a few hundred meters is infernal, even during breaks. How the locals manage 24/7 is beyond me...
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Nice bump that promises a nice descent in one direction or the other in the forest.
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The national necropolis of Chauconin-Neufmontiers brings together the remains of soldiers who died for France during the first days of the Battle of Ourcq (September 1914). Among them, rests the author and poet Charles Péguy killed on September 5, 1914.
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Imposing Renaissance-style castle dating from the 16th century, classified as a historical monument despite its degraded state.
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Here we have a very beautiful landscape of lakes with the castle in the distance. A natural setting for the greatest pleasure of cyclists. You can therefore land and take a break to recover your strength. The creperie in front of the lake is great!
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There are nearly 20 dedicated no-traffic road cycling routes around Lassy. These routes are designed to offer peaceful rides through the picturesque landscapes of the Canut Valley and its surroundings.
The routes around Lassy typically feature varied terrain, including gentle ascents and descents through extensive woods, lush meadows, and varied moorlands. While not overly mountainous, you can expect some rolling hills that add to the scenic experience, particularly within the beautiful Canut Valley.
Yes, there are several easy routes perfect for a relaxed pace. For instance, the route titled "Pretty village with castle – Ancient Tower loop from Villaines" is an easy option, covering about 24 km with moderate elevation gain, allowing you to enjoy the scenery without significant challenge.
While cycling, you'll pass through tranquil villages and natural beauty spots. For historical interest, you might consider routes that lead near attractions like Pontarmé Castle or Royaumont Abbey. The region is also rich in natural features such as The Blue Lake of Carnelle and Étangs de Commelles, offering beautiful views and opportunities for a break.
For those seeking a longer ride, the route "Château de Thiers-sur-Thève – Nantouillet Castle loop from La Borne Blanche" offers a substantial challenge, covering over 100 km with significant elevation gain. This moderate-difficulty route provides an extensive exploration of the region's quiet roads.
The spring and autumn months generally offer the most pleasant conditions for road cycling around Lassy, with mild temperatures and beautiful natural scenery. Summer can also be enjoyable, especially in the shaded areas of the Canut Valley, where you can find respite from the heat.
Many of the easier routes, particularly those with shorter distances and less elevation, are suitable for families. The focus on low-traffic roads makes for a safer and more enjoyable experience for all ages. Always check the route details for distance and difficulty to ensure it matches your family's capabilities.
The area is highly rated by the komoot community, with an average score of 4.5 stars. Reviewers often praise the tranquility of the routes, the beautiful natural landscapes of the Canut Valley, and the opportunity to cycle on quiet roads away from heavy traffic, making for a truly peaceful experience.
While specific parking areas for each route are not always explicitly listed, many routes start from or pass through small villages. You can often find public parking in these village centers, such as near churches or town halls, which serve as convenient starting points for your ride.
Yes, many of the routes are designed as loops, allowing you to start and end in the same location. For example, the "Church of Belloy-en-France – Pretty village with castle loop from Seugy" is a moderate loop route that takes you through charming villages and scenic countryside.
The routes often pass through or near small communes and villages where you may find local cafes, bakeries, or small shops. It's advisable to check the route details or a local map beforehand to plan your refreshment stops, especially on longer rides, as amenities can be sparse in more rural sections.
The entire Canut Valley is known for its remarkable panoramas. Routes that traverse the valley's varied moorlands and higher points will offer excellent views of the extensive woods and lush meadows. Keep an eye out for sections described as having 'panoramic views' in the route descriptions for the best scenic spots.


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