Col de la Loze Challenge 2026 – 117 km

Save 25% on your registration with the official discount code

Only via CycloWorld – directly applicable during registration

Previously known as Gran Fondo Col de la Loze

CycloWorld editorial

The Col de la Loze Challenge is widely regarded as one of the toughest gran fondos in the Alps. CycloWorld has followed this event for years and explains why it has become a true bucket-list challenge for ambitious riders.

👉 Read the CycloWorld editorial →

Event Info

• Name: Col de la Loze Challenge – Gran Fondo
• Date: July 19, 2026
• Start: Brides-les-Bains
• Finish: Col de la Loze (summit)
• Type: Gran Fondo
• Bike type: Road bike

Route & Elevation

• Distance: 117 km
• Elevation gain: 4,377 m+
• Key feature: Col de la Loze climbed twice

Climb Info

• Col de la Loze via Méribel: ~22.4 km, final 7 km on bike-only path with extreme gradients
• Col de la Loze via Courchevel: ~26 km ascent, final 5 km bike-only section, summit finish

Why ride the Gran Fondo?

• One of the toughest one-day cycling challenges in the Alps
• Legendary summit finish on the Col de la Loze
• High-mountain scenery in the heart of the Trois Vallées
• Excellent organisation with strong focus on rider safety

Looking for a shorter challenge?

Prefer the iconic Col de la Loze experience with fewer kilometers and elevation? The Medio Fondo routes (53 km or 46 km) allow you to tackle the legendary climb once, with the same organisation and atmosphere.

👉 View the Col de la Loze Challenge Medio Fondo →

What’s included

• Official participation in the Col de la Loze Challenge Gran Fondo
• Chip timing and results
• Fully equipped aid stations and medical support
• Finisher recognition, pasta party and event festivities

Instruction

This discount code is only valid for the Gran Fondo route (117 km).

1. The purchase of this discount code is not the event registration.
2. After purchase, you will receive an email with your personal discount code.
3. Register via the official event website.
4. Enter the discount code during registration.