Image John Ayers getting in a track preview after practice. We did notice that they were working to keep the Mules further away from the track when riders were on it. Credit GuyB Related: Miller Motorsports Park Vital MX Pit Bits Pro Motocross Championship 2015 Use keyboard arrow keys to browse the gallery. Swipe to browse the gallery. Prev Next 7 of 23Autoplay Autoplay SlowMedFast Share to Facebook Facebook Facebook Share to Twitter Twitter Twitter GuyB 8/17/2015 6:09pm Share to Facebook Facebook Facebook Share to Twitter Twitter Twitter