Moto gp racing Watch the top up-and-coming flat track racers in the world take on the legendary Springfield Mile.\r<br>\r<br>The best flat track racers in the world face off in Springfield, Ill., on Sept. 6 for the Springfield Mile. Riders in both the elite Harley-Davidson GNC1 presented by .\r<br>\r<br>AMA Pro Flat Tracks up-and-coming stars of the GNC2 class took to the track at the Illinois State Fairgrounds on Sept. 6, 2015 for the Springfield Mile.\r<br>\r<br>AMA Pro Flat Track Harley-Davidson GNC1 presented by Vance & Hines competitors try to punch their ticket to the main event by placing well in the Semi while .
