The MB Race invites you to come and exceed your limits on courses that are as demanding as they are breathtaking. Known as the toughest mountain bike race in the world, the event also offers several other formats so that all mountain bikers can find what they are looking for.

MB Race, the meeting place for mountain bikers

The MB Race was born in 2010 on the trails of Megève and Combloux. This mountain biking event, renowned for its races and routes that are as demanding as they are breathtaking, takes place in the territory of Mont-Blanc and Val d'Arly. No less than 12 towns are crossed by the different events: Megève, Combloux, La Giettaz, Flumet, Praz-sur-Arly, Saint-Gervais, Sallanches… and many others.

The MB Race has stood out, since its beginnings, in the panorama of mountain biking because it is the only one to include in its program a one-day event with a record distance of 140 km and 7 m of elevation gain! The MB Ultra Somfy, a race that has become legendary over the years, had only one Finisher in 000. Today it is known as the most difficult mountain bike race in the world! This year again, this event is on the UCI calendar in UCI MTB XCM Class 2010 over distances of 1 km & 140 m D+ for men and 7000 km & 70 m D+ for women.


Since 2010, the MB Race has asserted itself as a major event, both on its territory and in the world of mountain biking. We therefore invite you to join us from July 1 to 3, 2022 in Megève and Combloux to find the magnificent trails and landscapes of the Pays du Mont-Blanc. The event is open to all, cycling enthusiasts or amateurs, young or old, with friends or family...

There is something for everyone thanks to the 8 events offered:

  • MB Ultra Somfy 140|100|70 km
  • MB Explore 55km
  • MB Enduro 5 chrono specials
  • MB First 20|35 km
  • MB e-Rando 20|35 km
  • MB Kids
  • MB balance bike
  • MB Ultimate 230 km!
© Christophe BOUGAULT – Municipality of Megève

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