
This race stands out in the world of mountain biking as the only one-day event covering such a long distance: 140 km with 7,000 meters of elevation gain.
In 2010, the race had only one finisher out of 600 participants, earning it the title of the world’s toughest race! The event has become a major highlight, both locally and within the mountain biking community.

MB Ultra: 70 km | 100 km | 140 km
A now-legendary race on the trails of the Mont Blanc region. One goal: to finish the toughest race in the world. One challenge: 7,000 meters of elevation gain and 140 km to conquer to join the MB Finishers family!
MB Ultime: 230 km
A two-person team adventure: complete the 230-km MB Ultime course in less than 36 hours!
MB Explore: 55 km
A challenge in its own right with 2,500 meters of elevation gain, the MB Explore takes you on a 35- or 50-km route through breathtaking scenery with a view of Mont Blanc!
MB First: 20 km | 35 km
A new route that offers short, intense runs or active relaxation along beautiful mountain trails.
MB Enduro: 5 special stages
The MB Enduro has been around for 10 years, and the atmosphere is always wild! It's an old-school, one-day race with no recce runs, where riding skills and technique take center stage!
MB E-hike: 20 km | 40 km
Looking toward the future of cycling, the MB Race also offers the chance to explore its trails on an e-bike ride. This format is sure to appeal to lovers of scenic routes, featuring refreshment stops that highlight local products and festive activities.
MB FTT Rando
An excursion for people with limited mobility in an all-terrain wheelchair!
MB Kids
Even young competitors ages 7 to 14 can test their skills on the trails of Mont Blanc. These budding champions will be tomorrow’s MB Finishers!
MB Kids Discovery
An event that's 100% fun for kids ages 6 to 9!
MB Draisienne
A highlight of the weekend: the little ones can have fun on a race track right in the heart of the exhibitors' village!
Phone: +33 4 50 21 06 84
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