Image This is early in the first 450 practice. As you can tell, Glen Helen had some teeth in it this year. Credit GuyB Related: Cooper Webb Vital MX Pit Bits Glen Helen Raceway MX Nationals Pro Motocross Championship 2017 Use keyboard arrow keys to browse the gallery. Swipe to browse the gallery. Prev Next 2 of 45Autoplay Autoplay SlowMedFast Share to Facebook Facebook Facebook Share to Twitter Twitter Twitter GuyB 5/30/2017 9:44am Share to Facebook Facebook Facebook Share to Twitter Twitter Twitter