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Mountain Mayhem

The original UK 24hr MTB race (since 1998), Marston Lodge, Northamptonshire. 8.2km XC lap with 191m climbing. Held on the weekend nearest midsummer, so the shortest possible night (~5-6hrs darkness). Solo/pairs/teams. Mud-prone. Noon Sat to noon Sun.

19 June 2027Ledbury, Herefordshire8.2km/lap
Get your Mountain Mayhem plan

The original UK 24hr MTB race (since 1998), Marston Lodge, Northamptonshire. 8.2km XC lap with 191m climbing. Held on the weekend nearest midsummer, so the shortest possible night (~5-6hrs darkness). Solo/pairs/teams. Mud-prone. Noon Sat to noon Sun.

What makes it hard

  • Night riding — pacing and kit in the dark are part of the performance
  • 24 hours of continuous effort — durability over raw power
  • 191m of climbing per lap adds up fast
  • Technical terrain: XC singletrack, farm and woodland tracks

How BEINA trains you for it

BEINA reads the exact demands of Mountain Mayhem — 24hr mtb, 8.2km/lap, XC singletrack, farm and woodland tracks — and builds your plan around them. Race-day predictions and AI coaching remove the guesswork so you arrive ready.