On Sunday , September 20, 2026, the non-profit organization FernelMountainbike is once again organizing L'Assaut Mosan, their unmissable mountain bike and gravel ride. This edition is extra special because the club is celebrating its 10th anniversary. A wonderful opportunity to celebrate a decade full of passion, sport, and camaraderie surrounding mountain biking.
In honor of this anniversary, participants will discover a new concept of customizable mountain bike routes. Starting with a main route of 26 km, everyone can create their own route, tailored to their level and preferences, up to 70 km.
The more athletic participants can take on the challenge of the 96 km mountain bike marathon, while gravel enthusiasts can choose from two routes of 49 km or 74 km. A 15 km family tour offers families the opportunity to experience this day in a pleasant atmosphere.
The event is known for its generous and original refreshments and also offers technical support, showers, a bicycle washing station, secure bicycle parking, a first aid post, a massage room, a barbecue, and a bar to continue the socializing after the exertion.
Departure times
• Mountain bike marathon (96 km): from 7:30 to 9:00
• Unpaved roads (49 km and 74 km): from 7:30 to 10:00
• Custom mountain bike tour: from 7:30 to 10:30
• Family tour (15 km): from 9:00 to 14:00
Departure: Fernelmont Sports and Community Centre – Noville-les-Bois
Information: www.lassautmosan.be
The Mosan Assault 2026: everyone's own challenge, everyone's own adventure!