This is the moment when stunt rider Travis Pastrana successfully does the first motorbike backflip while floating on water. <br /><br />The American, 33, backflipped a 75-foot wide gap between two barges floating on the Thames River opposite the O2 Arena. <br /><br />Pastrana only had 150 feet to accelerate to takeoff speed and after landing only had 36 feet to come to a stop.
