gravelmtb

Dahu Trail

Western Alps, Italy · 3 August 2026

Difficulty: 5/5 — Brutal

Covering a brutal 800 km with 28,000 meters of elevation gain, the Dahu Trail is an extreme, unsupported alpine ultra-cycling challenge on highly demanding gravel and mountain bike terrain. This high-altitude expedition loops through the Western Alps, crossing international borders eight times.

Visit official site →
Distances
800km
Elevation
28,000 m
Surface
gravel, dirt, tarmac
Typical W/kg
3.5–5

Rider fit

Who it's for

Experienced, self-sufficient ultra-endurance cyclists who thrive on massive vertical climbing and rugged, high-altitude mountain environments.

Who will struggle

Riders who lack experience with self-supported multi-day bikepacking, steep off-road climbing, or coping with unpredictable Alpine weather.

Training focus

Develop elite-level aerobic climbing capacity and prepare with extensive back-to-back mountain training blocks to handle extreme, repeated vertical elevation gain.

Are you ready for this race?

Compare your W/kg to see how you stack up against this race's typical level — and which races fit you best right now.

FAQs

What is the total distance and elevation gain of the Dahu Trail?+

The route covers approximately 800 km and features an extreme 28,000 meters of total elevation gain.

What type of bicycle is best suited for this event?+

Since the terrain is 70% unpaved and consists of gravel and mountain bike trails, a gravel bike with high tire clearance or a lightweight mountain bike is highly recommended.

Is this a supported race or a stage race?+

No, this is a single-stage, completely unsupported ultra-cycling adventure where riders must manage their own food, shelter, and navigation.

Where does the route start and finish?+

The event starts in Aosta, Italy, and finishes in Saluzzo, Italy.

Which borders does the route cross?+

The course winds through the Western Alps and crosses national borders between Italy, France, and Switzerland a total of eight times.

Similar races

Dolomiti Superbike

📍 Dolomites, Italy

mtb
Date
5 July 2025
Distance
60km · 119km
Elevation
3,900 m
Difficulty

Grand Tour 3 Cime Lavaredo

📍 Auronzo di Cadore, Italy

gravel
Date
20 June 2026
Distance
133km · 105km
Elevation
3,200 m
Difficulty

Italy Divide XL

📍 Bari to North, Italy

gravelmtb
Date
30 April 2026
Distance
1 · 650 km
Elevation
29,000 m
Difficulty

Browse more