Martin says he didn't ride much before the film. "When I did, I gave my bike away because I wasn't good," Martin says.
Martin says he got plenty of help from John, who had motorcycles before he had planes. In fact, John says when he first came to Hollywood he bought a motorcycle instead of a car because it was cheaper. "That was the first thing I ever drove," he says.
Even the strongest riders had some help. For some shots, a trailer pulled them along. "Don't tell nobody," Martin jokes. "In all fairness to the group, 90 percent of the riding was actual riding that we did," John says.