The Mountain Mayhem is the biggest, and the oldest, 24 hour race in Europe. Ross led the field of 80 solo riders from the start.
"The 29er gave Nat the ability to cruise with little effort over the rough course," said Trek's Brian Buckle.
"It was very gratifying for Gary [Fisher] to finish his [European tour] with this major win [from a rider using] one of his bikes."
All the results can be found at: