The Tour de France hit the Alps for the first time on Tuesday's stage 10, bringing with it the usual site of hordes of people coming perilously close to the riders as they ascend some of the world's steepest roads.

But one fan came up with a novel way to make it even more perilous by leaping over the road on a mountain bike as the leaders cycled past.

Television cameras were following the breakaway during the day's second climb up La Montee du Plateau des Glieres when a mountain biker came thrashing through the trees and vaulted over the road.

The mountain biker appears at the top right-hand corner of the screen during the TV coverage

The daredevil sails straight over the heads of the race leaders during Tuesday's Alpine stage

The biker disappears back into the trees after successfully completing the jump over the riders