gravel

The 360 — London Orbital Gravel Challenge

Greater London and South East England, United Kingdom · 19–20 June 2027

Difficulty: 5/5 — Brutal

Spanning a massive 360 kilometers with 4,400 meters of elevation, this grueling self-supported gravel orbit around London features a diverse mix of bridleways, singletrack, and canal paths. Its unique mental difficulty lies in the route's constant proximity to metropolitan transport links, tempting riders to abandon the loop when fatigue sets in.

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Distances
360km
Elevation
4,400 m
Surface
gravel, singletrack, dirt, tarmac
Typical W/kg
2.5–4

Rider fit

Who it's for

This challenge is designed for experienced, self-sufficient ultra-endurance cyclists and bikepackers who excel at independent navigation and long hours in the saddle.

Who will struggle

Riders who lack experience in self-reliance, night riding, or those who are easily discouraged by easy bail-out options like nearby train stations will struggle to finish the orbit.

Training focus

Training should prioritize high-volume aerobic endurance, extensive night riding practice, and building the mental resilience needed to push through sleep-deprived states.

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 climbing involved?+

The full London orbital loop covers approximately 360 kilometers with around 4,400 meters of total elevation gain.

What kind of support is provided during the ride?+

The event is completely self-supported, meaning participants must manage their own food, pacing, navigation, and mechanical repairs without external aid.

How are riders tracked during the event?+

Each participant carries a live GPS tracker, which allows organizers, friends, and family to view their real-time progress on a live map.

What type of bike and tires should I use?+

A reliable gravel bike or mountain bike is suitable for the terrain. Fast-rolling tires work well in dry conditions, but more technical, treaded tires are advised if the weather turns wet.

Is it mandatory to carry lights?+

Yes, high-powered front and rear lights are required, as a significant portion of the route will be ridden in complete darkness.

Can I ride only a portion of the 360km loop?+

Yes, the route naturally breaks into shorter station-to-station sectors, allowing riders to tackle individual segments or bikepack the route over a weekend instead of doing a continuous push.

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