4.6
(98)
279
riders
61
rides
Mountain biking around Reilly offers a diverse landscape for riders. The region features varied terrain, including areas around lakes and ponds, as well as rolling hills and woodlands. With elevations ranging up to 300 meters, the trails provide a mix of climbs and descents suitable for mountain biking.
Last updated: October 12, 2026
4.6
(7)
8
riders
30.8km
02:14
280m
280m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
5.0
(1)
8
riders
17.1km
01:15
150m
150m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

9
riders
39.2km
02:47
300m
300m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
5.0
(1)
5
riders
22.2km
01:45
310m
310m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
5.0
(4)
3
riders
40.5km
03:03
320m
320m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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A former castle transformed into a town hall, the Trie-Château town hall preserves a tower where Jean-Jacques Rousseau stayed. You can also admire its medieval gates and period architecture.
0
0
Great loop with a good balance between asphalt and gravel... Yess!!!
0
0
The Julius Caesar Way is in a sorry state, too much grass, not very practical for walkers and cyclists unless you have a lawnmower. It's a shame because in previous years, it was a real pleasure.
0
0
isolated from the road this route allows you to discover the French Vexin
0
0
Let us be respectful of the Julius Caesar causeway, of the builders and of the people who maintain it today and tomorrow.
1
0
The mountain bike trails around Reilly offer a good mix of difficulties. You'll find 26 easy routes, 36 moderate routes, and 2 more challenging trails, catering to various skill levels.
Yes, Reilly offers several family-friendly options. There are 26 easy routes that are generally suitable for families. A good example is the Pierre Frite Standing Stone – Lavilltertre pond loop from Loconville, which is an easy 15.1-mile trail.
The terrain around Reilly is quite varied, featuring areas around lakes and ponds, as well as rolling hills and woodlands. Elevations can reach up to 300 meters, providing a mix of climbs and descents.
Yes, many of the mountain bike routes in Reilly are designed as loops. Popular options include the Lake loop from Chaumont-en-Vexin and the Lavilltertre pond – Saint-Rémi Church loop from Liancourt-Saint-Pierre.
While exploring the trails, you can encounter several interesting landmarks. The Pierre Frite Standing Stone – Lavilltertre pond loop from Loconville passes by a notable standing stone. Other nearby attractions include Gisors Castle and Dolmen des Trois-Pierres.
The mountain bike routes in Reilly are highly regarded by the komoot community, holding an average rating of 4.6 stars from over 80 reviews. Riders often praise the varied terrain and the scenic beauty of the lakes and woodlands.
For experienced riders looking for a longer challenge, the Lake loop from Chaumont-en-Vexin is a moderate 24.0-mile trail with over 300 meters of elevation gain, offering a substantial ride.
Beginners can enjoy the Mountainbike loop from Chaumont-en-Vexin. This easy route is 12.8 miles long with about 128 meters of elevation, providing a gentle introduction to mountain biking in the area.
Yes, the Lavilltertre pond – Saint-Rémi Church loop from Liancourt-Saint-Pierre is a moderate 19.3-mile path that passes by a historic church and a pond, offering cultural interest along the ride.
The varied terrain of Reilly is generally enjoyable throughout the warmer months. Spring and autumn often provide pleasant temperatures and beautiful scenery, while summer is also suitable, especially around the lakes and ponds.
While not directly on a trail listed, the Moussy Castle – Lavilltertre pond loop from Liancourt-Saint-Pierre is a moderate 21.5-mile route that brings you close to the area where Moussy Castle is located, offering a chance to see historical architecture.


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