PICKERINGTON, Ohio (Sept. 18, 2003) -- AMA Pro Racing has announced rider numbers for competitors in the 2004 AMA Supercross Series and AMA Chevy Trucks U.S. Motocross Championship.
National numbers are based on a system (established in 2000) that allows past champions, current champions and riders, who have earned a top-10 national ranking, to select and retain the same number from year to year.
According to John Farris, AMA Pro Racing