Josh Sheehan Describes First Backflip On SI Now, freestyle motocross rider Josh Sheehan explains how using proper speed and distance led him to become the "daredevil."SI Staff|Share on FacebookShare on XAdd us on On SI Now, freestyle motocross rider Josh Sheehan explains how using proper speed and distance led him to become the "daredevil."Published Apr 30, 2015 | Modified Apr 30, 2015SI STAFFShare on FacebookShare on XHome/Edge