It’s difficult to jump over rocks with a trials motorcycle. It’s even more diffucult to jump over a human head without crushing it. Check out these insane trials motorcycle stunts. These guys put on a great motorcycle stunt show, and no one was seriously injured. Motorcycle Trials, which is also called Observed Trials is a non-speed competition on special lightweight motorcycles built for jumping and climbing. To win a trials motorcycle competition, you have to navigate an obstacle course on your trials motorcycle without touching the ground with your feet. Motorcycle trials competition is very popular in Spain and the United Kingdom. Specialized Trials Motorcycle manufacturers are Gas Gas, Montesa, Honda, Beta, Sherco, and Scorpa.