4.2
(27)
612
riders
15
rides
No traffic road cycling routes around Lalleu are situated within the Ille-et-Vilaine department, which features an extensive network of cycling paths. The terrain is characterized by tranquil forests, such as Forêt de Chevré, scenic river valleys like Vallée du Canut, and numerous small lakes, including Étang de la Cantache. Many routes utilize canal towpaths and former railway lines, offering flat, traffic-free surfaces ideal for road cycling.
Last updated: July 3, 2026
9
riders
84.5km
03:41
610m
610m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
6
riders
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

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7
riders
125km
05:30
840m
840m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
3
riders
79.9km
03:27
700m
700m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
3
riders
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.
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Popular around Lalleu
The Sainte-Marie-Madeleine church was built in the 19th century in a neo-Gothic style by Aristide Tourneux, an architect from Castelgiron. With a touch of humor, the town's priest in 1912 wanted to give "cats to the girons": Arthur Regnault, a sculptor, therefore sculpted cats at the four corners of the bell tower. Having collapsed in 1998 following a severe storm, the bell tower was rebuilt identically in 2000.
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Church attested in the 12th century. Nave flanked by a north aisle, built between 1540 and 1549 (date of consecration by the bishop of Rennes), and by a south aisle, built between 1603 and 1605 (dates inscribed). Inscription on the south door: ESTANT NOBLE ET DISCRET PRESTRE : RENE DE L'ESPINAY RECTEUR DE PIRE : SIEUR DE LA GUAYE FUT CESTE EDIF : CE COMMENCE. SA (NC) TE DEUS SA (NC) TE FORTIS SA (NC) TE IMORTALIS MISERERE NOBIS SA (NC) TE PETRE ORA P (RO) NOBIS : TOUT EST A Dieu 1603. The choir was first rebuilt in 1627, then surmounted by a dome struck by lightning in 1741, then again between 1752 and 1775, flanked by side sacristies. Bell tower at the top of the nave rebuilt in 1669. In 1874, architect Aristide Tourneux had a bay added to the north of the nave and a porch-tower surmounted by a spire built. Stained glass windows signed and dated: Claudius Lavergne 1882, and also stained glass windows from the Rault workshops and the Carmel of Le Mans. South wall of the enclosure redone in the 19th century with a monumental corner staircase.
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With nearly 20 meters long, 6 meters wide, and 4 meters high, the Roche-aux-Fées remains the largest dolmen in France and one of the best-preserved in Europe. It is composed of a schist-covered passage formed by four chambers whose meaning has not yet been revealed. Although the construction of this monument dates back to the Neolithic period, around 2000 BC, specialists remain perplexed about its construction method. The site is impressive. And when you know that some stones weighing over 40 tons come from several kilometers around, you wonder how the inhabitants of the time managed to move them there. Such a site could only inspire stories, legends, and beliefs. One of them tells that the fairy Viviane, aided by fellow fairies, would have built this imposing monument... in one night. Another concerns lovers: to know if their union will last, couples must walk around the Roche-aux-fées, each in a different direction, and count the stones. If they find the same number of stones, their future will be bright! Through a mysterious alignment during the winter solstice on December 21st or 22nd, the sun rises facing the entrance of the dolmen. At that moment, the light rays magically illuminate the stone located at the back of the covered passage. Access is free and open. The small surrounding roads are charming and quiet.
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Sorry for the Mouaisiens...
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Short video of the site: https://www.youtube.com/watch?v=bqEBsKL7P7s
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A small town of character, La Guerche-de-bretagne is full of charm, its cobbled streets inviting you to stroll among the half-timbered houses. Source: https://www.petitescitesdecaractere.com/cites/la-guerche-de-bretagne
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Very nice place, very friendly! I recommend !
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There are over 20 dedicated no-traffic road cycling routes around Lalleu, offering a variety of distances and challenges. The region, part of Ille-et-Vilaine, boasts nearly 3,300 kilometers of developed cycling routes, many utilizing canal towpaths and former railway lines for safe, car-free exploration.
The routes around Lalleu offer varied terrain. While many paths, especially those along canal towpaths and former railway lines, are relatively flat, you can expect moderate elevation gains on some routes. For example, the Saint-Marse Church of Bais loop from Le Theil-de-Bretagne features over 600 meters of elevation gain, providing a good workout. The region's landscape includes river valleys and forested areas, which contribute to the diverse gradients.
Yes, the Ille-et-Vilaine department is known for its extensive network of greenways (voies vertes) which are ideal for family cycling. These paths are often flat, traffic-free, and well-paved, making them suitable for various fitness levels, including children. Look for routes that utilize canal towpaths for the gentlest gradients.
Cycling around Lalleu allows you to experience a rich tapestry of natural beauty. You can ride through tranquil forested areas like Forêt de Chevré or Forêt de Rennes, and explore scenic river valleys such as the Vallée du Canut. The region is also dotted with picturesque ponds and lakes, including Étang de la Cantache and Étang de la Valière, which often provide beautiful backdrops for a ride. The Vilaine river itself, with its pronounced meanders, offers pleasant routes.
The komoot community rates the cycling experience around Lalleu highly, with an average score of 4.06 stars. Cyclists often praise the tranquility of the car-free routes, the diverse natural landscapes, and the opportunity to explore charming local villages and historic sites without the worry of traffic.
Yes, many of the no-traffic road cycling routes around Lalleu are designed as loops, allowing you to start and finish at the same point. An example is the challenging Fathers' Castle – Châteaugiron Castle loop from Le Theil-de-Bretagne, which offers a substantial ride through the local area.
While specific parking locations for each route are best checked on individual komoot Tour pages, generally, you can find parking in the centers of nearby towns and villages like Le Theil-de-Bretagne, which serves as a common starting point for many routes. Larger towns in the region are usually well-equipped with public parking facilities.
The region around Lalleu is rich in history and culture. You can cycle to historic towns like Châteaugiron, known for its castle and towers, or Vitré, with its superb medieval center. A notable landmark accessible by bike is the La Roche-aux-Fées Dolmen, an impressive megalithic monument. The La Guerche-de-Bretagne – Miniatures Henri Chesnais loop also takes you past interesting local points.
The best time for road cycling in Lalleu, and Brittany in general, is typically from spring through early autumn (April to October). During these months, the weather is generally milder and more pleasant, with less rainfall, making for ideal cycling conditions. The natural landscapes are also at their most vibrant.
Many of the greenways and quiet country roads around Lalleu are suitable for cycling with a dog, provided your dog is accustomed to running alongside a bike or can be safely carried in a trailer. Always ensure your dog's safety and comfort, and check local regulations regarding dogs on specific paths or in natural areas. The peaceful nature of the no-traffic routes makes them a good option for this.
Yes, for cyclists seeking a greater challenge, there are longer routes with more significant elevation gains. For instance, the Saint-Marse Church of Bais – Timber-Framed Restaurant loop covers over 65 kilometers with moderate climbing, while the Roadbike loop from Le Theil-de-Bretagne offers a substantial 80-kilometer ride with over 700 meters of ascent.


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