11th edition in 2025. Paul Errington brought 'proper gravel event to the U.K.' with an 'English touch,' inspired by American races like Dirty Kanza and Land Run. Named after the 'reivers'—Northumbrian border raiders who once roamed these lands. Venue: Kielder Castle, a 200-year-old hunting lodge now mountain bike center. 60+ miles singletrack trails, hundreds of miles forest service two-track gravel roads. 'Nowhere in the UK like this for riding.' Founded in 2015. By Paul Errington (inspired by Dirty Kanza and Land Run).
Reputation: The UK's original gravel race. If you want to say you've done British gravel, you do Dirty Reiver.




