Brief bio:
Motocross superstar Ronnie Renner has already established himself as one of the greats in the sport. In 2008, he took part in the Red Bull Experiment, which showcases some of the best action athletes performing daredevil stunts. During the Experiment, Renner set a new Guinness World Record—highest air ever on a motorcycle quarterpipe—at 59 feet, 2 inches.