GranGuanche Audax Gravel
📍 Canary Islands, Spain
gravel
Date
24–31 January 2027
Distance
800 km
Elevation
17,000 m
Difficulty
gravel
Basajaun
Basque Country, Navarre, La Rioja, Spain · 26–31 July 2026
Difficulty: 5/5 — Brutal
The Basajaun is an 890 km, 15,000m elevation gain, 70% off-road ultracycling event traversing the diverse and wild landscapes of the Basque Country, Navarre, and La Rioja. Riders will navigate lush forests, arid plains, and mountainous terrain in a 100% unassisted, single non-stop stage adventure.
Visit official site →- Distances
- 890km
- Elevation
- 15,000 m
- Surface
- gravel, dirt, tarmac
- Typical W/kg
- 2.8–3.6
Rider fit
Who it's for
This challenge is designed for experienced ultra-endurance cyclists who thrive on self-sufficiency and are prepared to conquer a diverse range of extreme landscapes and climates.
Who will struggle
Cyclists lacking extensive off-road endurance experience, unable to manage their own mechanical issues, or unaccustomed to significant self-supported time in varied and harsh environments will find the Basajaun exceptionally difficult.
Training focus
Key training areas should include sustained multi-day off-road riding, extensive climbing across diverse gradients, developing mental fortitude for solitude, and mastering navigation and on-the-go bike maintenance.
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 terrain and climate like on the route?+
The route features diverse terrains, including lush forests, arid semi-desert plains, and mountainous massifs with clay soil and rock. Riders should prepare for significant climate variations, ranging from heat and wind in the Bardenas and Ebro river areas to near 0°C temperatures in the Sierra de la Demanda.
Are riders permitted to receive outside support or pre-book services?+
No, Basajaun is a 100% unassisted event. It is strictly forbidden to reserve any services, including accommodation, before departure. All needs during the event must be arranged personally by each participant once the challenge has begun.
What should riders do if they get lost or experience mechanical problems?+
Riders are expected to be self-sufficient. If lost, they must use their GPS or mobile phone for navigation without calling for external assistance. For mechanical issues, riders should attempt self-repair; if not possible, they may seek a mechanic but must return to the exact point on the route where they left it.
Is insurance included with registration?+
Yes, the registration fee includes basic insurance covering Public Liability, Personal Accident, Emergency Rescue, Death, Repatriation, and basic medical assistance. However, participants are advised to carefully review the policy details and consider obtaining private, more extensive medical coverage.
How available are food and water along the route?+
With proper route preparation, food and water sources are generally available. Participants are strongly advised to carry enough food for a day and to refill water whenever possible to maintain self-sufficiency.
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Elevation
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Date
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Distance
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Elevation
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Difficulty