A daredevil has broke a nerve shredding record - after being dragged behind a superbike at 160mph.<br /><br />Jonny Davies, 32, achieved the incredible stunt by accelerating the modified Kawasaki Ninja H2 SX, climbing off the back and putting his feet on the runway.<br /><br />After practicing beforehand, he completed the challenge on Sunday (August 18) at the Ultimate Supercar Show in Elvington, North Yorks,.