 Depending on point totals of individual racers, winners of Grand Nationals do not necessarily win National titles.National Bicycle Association (NBA)
National Bicycle League (NBL)

American Bicycle Association (ABA)

United States Bicycle Motocross Association (USBA)
International Bicycle Motocross Federation (IBMXF)

National Bicycle Association (NBA)
National Bicycle League (NBL)
American Bicycle Association (ABA)
United States Bicycle Motocross Association (USBA)
International Bicycle Motocross Federation (IBMXF)


Due to the dirth of professional participation in general and American involvement in the competition in particular there was no Professional class in the IBMXF World Championships held in Suzuka, Japan.Indeed, Mike Poulson was the only pro of any nation to participate.