Alps Divide Ultra is one of Europe’s toughest self-supported bikepacking races, sending riders on an unforgettable journey through the Western Alps from the Mediterranean Sea to Lake Geneva. Crossing repeatedly between France, Italy, and Switzerland, the route links high mountain passes, historic military roads, alpine meadows, and some of the most spectacular gravel riding in Europe.
The route covers approximately 1,050 kilometres with around 32,000 metres of elevation gain, starting in Menton, France, and finishing in Thonon-les-Bains on the shores of Lake Geneva. Riders follow a fixed mixed-terrain course of quiet paved roads, rugged 4×4 tracks, alpine trails, and frequent hike-a-bike sections. Highlights include the legendary Colle del Sommeiller, one of Europe’s highest gravel roads at over 3,000 metres, plus remote passes and sweeping views of Mont Blanc and the Dents du Midi.
Alps Divide Ultra follows a strict self-supported philosophy. Riders are responsible for navigation, accommodation, food, and mechanical repairs, with no outside assistance permitted. The route is physically demanding, with long climbs, technical terrain, and sections that require strong bike handling and mountain experience. Cut-off times keep the event moving while preserving the spirit of adventure and self-sufficiency. With relentless climbing, world-class alpine scenery, and a route that rewards determination with unforgettable landscapes, Alps Divide Ultra has earned a reputation as one of the continent’s premier mixed-terrain bikepacking events. It is an epic challenge for riders seeking the very best of adventure cycling in the Alps.
Beyond the physical challenge, the race is celebrated for its sense of isolation, changing weather, and constant contrast between coastal warmth and high alpine cold. Riders may face snow, rain, heat, and darkness within the same day, making preparation essential. For experienced bikepackers, Alps Divide Ultra offers a rare blend of endurance, navigation, and mountain adventure from start to finish, entirely alone.
GPS tracks and route files are provided for reference only. Always verify with official event resources before riding.
Based on this event's terrain, difficulty and riding style.
Riders taking on The Alps Divide will cover 1040 km and climb roughly 33000 m over the course of the route.
The Alps Divide's terrain calls for a Gravel Bike, ideally running 45-50mm Tubeless tires. On the drivetrain side, a 38-40T (1x) chainring matched to a 10-51T cassette gives enough range for the climbing involved.
The Alps Divide carries an overall difficulty rating of Extreme. The terrain itself is rough, technical terrain for a good stretch of the route, the climbing is relentlessly mountainous, climbing almost the entire way, and conditions tend to run mild and generally comfortable.
The Alps Divide takes place on September 5, 2026. That puts it in autumn, as conditions start cooling but daylight hours are shrinking.
The Alps Divide's route is gravel. Plan your tire choice around 45-50mm Tubeless for the best combination of speed and comfort.