Les Géants takes riders into the heart of the French Alps, tackling some of the region’s most demanding mountain roads and gravel routes. Starting and finishing in Annecy, the event offers four formats for riders looking to test themselves against the Alpine terrain, either solo or as a duo.
There are two road options: 300 km with approximately 7,000 metres of climbing, and 700 km with around 17,500 metres. Gravel riders can choose between a 250 km route with 6,000 metres of elevation gain or a more demanding 600 km challenge with approximately 16,000 metres. The courses cross spectacular Alpine landscapes, with long climbs, mountain passes and demanding descents.
The shorter distances have a 30-hour time limit, while the 600 km gravel and 700 km road challenges allow up to 72 hours. Routes are supplied as GPX files one month before the event, with mandatory checkpoints on the longer formats. Riders are also equipped with GPS trackers for live tracking and safety monitoring.
Les Géants follows a full-autonomy format. Participants manage their own nutrition, equipment, navigation and mechanical issues, without outside assistance on the course. Whether tackling the shorter gravel route or committing to the 700 km road challenge, the event offers a demanding way to experience the French Alps.
Based on this event's terrain, difficulty and riding style you might like these ultra events.
Les Géants covers 700 km with 18000 m of climbing along the way — a steadily rolling profile from start to finish.
For Les Géants, we'd recommend a Endurance Road Bike — plan on 30-35mm Tubeless tires and a wide-range drivetrain, something like a 46/30T-50/34T (2x) chainring paired with a 10-36T cassette, to handle the terrain comfortably.
We rate Les Géants as Advanced overall. Riders should be ready for, steadily rolling, with a healthy amount of climbing elevation gain, and mild and generally comfortable conditions.
Les Géants runs on August 13, 2027, placing it firmly in the summer riding season, with long daylight hours, though heat can become a real factor.