MB RACE
This race stands out in the mountain biking landscape because it is the only one that displays a one-day event with such a long distance: 140 km with 7000 meters of positive altitude difference.
From July 4 to 6, 2025
The Toughest Mountain Bike Race in the World
This race stands out in the mountain biking landscape because it is the only one that displays a one-day event with such a long distance: 140 km with 7000 meters of positive altitude difference. A race that counted only 1 finisher out of 600 runners in 2010, which earned it the label of the most difficult race in the world! The event has established itself as a major event, both on its territory and in the mountain biking world.
ON THE PROGRAM:
MB Ultra Somfy : 70km | 100km | 140 km
A now legendary race on the trails of the Mont-Blanc region. One objective: to become a finisher in the most difficult race in the world. A challenge: 7000m of D+ and 140 km will have to be overcome to join the MB Finishers family!
MB Explore : 35km | 50km
A fully-fledged challenge with its 2,500 meters of D+, the MB Explore will take you 35 or 50 km through breathtaking landscapes facing Mont-Blanc!
MB First : 20 km
A timed race open to all from the age of 13, the MB First will allow you to discover the atmosphere that reigns on its mythical trails!
MB Enduro : 5 Specials
The MB Enduro has existed for 10 years, and the atmosphere is still crazy! Race over a day without recognition, in the old fashioned way where driving and technique are put in the spotlight!
MB e-Rando : 35km | 50km
Focused on the future of cycling, the MB Race also knows how to make people discover its trails by mountain bike. A format that will delight lovers of beautiful itineraries. Food in the colors of the land and festive activities
MB Kids
Young competitors will also be able to challenge themselves on the tracks of Mont-Blanc. Future budding champions will be tomorrow's MB Finishers!
MB Balance bike
A highlight of the weekend, the little ones will be able to have fun on a loop in the heart of the exhibitors' village!
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