Nestled in the heart of Northumberland, the Kielder Bike Marathon stands as a testament to the enduring spirit of adventure and the unyielding call of the wild. Known as “Kielder Time,” this event transcends the conventional race against the clock, inviting cyclists to immerse themselves in the rhythm of the forest, where time seems to stand still, and the only measure of passing moments is the beat of their hearts and the turn of their wheels.

The Stage is Set

Kielder Forest, the largest man-made woodland in England, offers a dramatic backdrop for this unparalleled bike marathon. With its expansive reservoir, ancient landscapes, and diverse wildlife, the setting is more than just a course—it’s a journey through the very essence of nature. “Kielder Time” is not merely about the race; it’s an invitation to experience the forest’s timeless beauty and the profound tranquility that lies within its bounds.

The Challenge Awaits

The Kielder Bike Marathon is renowned for its challenging course, a mix of demanding climbs, thrilling descents, and technical trails that test the mettle of even the most seasoned cyclists. The marathon’s route is designed to showcase the best of Kielder’s natural terrain, offering breathtaking views and heart-pounding moments in equal measure. Participants find themselves not just competing against one another, but also engaging in a deeper battle against the elements and their own limits.

A Community United

What sets the Kielder Bike Marathon apart is the sense of community it fosters among participants. Cyclists from diverse backgrounds and skill levels come together, united by their shared love for the sport and their respect for the forest. The atmosphere is electric, charged with camaraderie and mutual encouragement. For many, “Kielder Time” becomes a cherished memory, a moment when rivalries fade, and the joy of cycling takes center stage.

The Spirit of Kielder Time

To embrace “Kielder Time” is to let go of the outside world’s pressures and lose oneself in the rhythm of pedaling, the whisper of the wind, and the rustle of leaves. It’s a reminder that, in the heart of the forest, time moves differently, measured not by hours and minutes but by experiences and emotions. The Kielder Bike Marathon is more than a race; it’s a celebration of the enduring connection between humans and nature, a chance to rediscover the simple joy of riding through an ancient landscape that whispers tales of times long past.

Looking Forward

As the dust settles on another year’s marathon, the legacy of “Kielder Time” continues to grow. Each edition of the race adds new stories to the tapestry of experiences that make the Kielder Bike Marathon a must-attend event for cycling enthusiasts. Looking ahead, the promise of future races beckons, offering new challenges to overcome and more moments of timeless beauty to savor. In Kielder Forest, the adventure never ends, and “Kielder Time” waits to welcome all who are drawn to its call.

In conclusion, the Kielder Bike Marathon is not just an event; it’s a phenomenon. It captures the essence of time spent in the embrace of nature, offering a unique blend of competition, adventure, and camaraderie. For those who have experienced “Kielder Time,” the forest’s call remains a siren song, drawing them back, year after year, to the pulse of the wild that beats at the heart of this extraordinary marathon.

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We are sorry to have to announce that the events have been cancelled and apologize for any inconvenience this may cause. Full refunds will be issued over the next couple of months. 2013 Cancelled Kielder 50 Includes: race entry, race T-shirt, 1 x Accelerade energy gel, Accelerade energy drink at

Entry for 2013 has now closed


Entry fees: £70 (24h) & £50 (12h) Includes: race entry, electronic timing, free camping, light charging from sponsors Exposure Lights, free energy drink from Accelerade, neutral technical support for all riders from Run and Ride, free tea, coffee and boiling water for riders. To find out more about the services