Image Ken Roczen took off from the start of moto two of the 450s, and was gone. Credit GuyB Related: Ken Roczen Photo Blast Glen Helen Raceway MX Nationals Pro Motocross Championship 2016 Use keyboard arrow keys to browse the gallery. Swipe to browse the gallery. Prev Next 34 of 43Autoplay Autoplay SlowMedFast Share to Facebook Facebook Facebook Share to Twitter Twitter Twitter GuyB 5/30/2016 12:02pm Share to Facebook Facebook Facebook Share to Twitter Twitter Twitter