July 4-6, 2025
The MB Race was born in 2010 on the trails of Megève and Combloux! This mountain bike event, renowned for its demanding and breathtaking races and courses, takes place in the Mont-Blanc and Val d’Arly region.
The MB Race stands out in the mountain biking scene because it is the only one to include a one-day event on its program, covering a distance of 140 km and 7,000 m of elevation gain! The MB Ultra Somfy, the event’s flagship race, had only one finisher in 2010. Today, it is known as the toughest mountain bike race in the world!
But the MB Race is also a major mountain bike festival, with no fewer than 9 events on the program… for all ages and all levels!
Photo credit: MB Race