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The following is a list of Trans-AMA Champions, from 1970 to 1978.The championship was an international series established by the American Motorcyclist Association as a pilot event to help establish motocross in the United States.
Although Karsmakers was a Dutch citizen, he was competing under an AMA license so, he was listed as the "Top American" finisher in the Trans-AMA series. After winning the 1972 250cc national championship on a Yamaha, Gary Jones was hired by Honda to help develop their new Honda CR250M motocross bike for the 1973 season.
1972 marked the inaugural year for the AMA Motocross National Championship. Brad Lackey dominated the 500cc class ahead of Gary Jones and Wyman Priddy. [1] In 1972, after the season-ending 500cc race on September 2, American riders competing for the AMA national championship continued to accumulate points counting towards the national championship while they competed in the 1972 Trans-AMA ...
A 125 cc class was added in 1974. As motocross technology developed, 500 cc two-stroke motocross bikes became too powerful for the average rider and, faced with diminishing numbers of competitors, the AMA discontinued the 500 cc class after the 1993 season. A women's national championship series was introduced in 1996.
The 1974 Trans-AMA motocross series was the fifth annual international series established by the American Motorcyclist Association as a pilot event to help establish motocross in the United States. The motocross series was an invitational based on a 500cc engine displacement formula, run on American tracks featuring the top riders from the F.I ...
The 1970 Trans-AMA motocross series was an international series established by the American Motorcyclist Association as a pilot event to help establish motocross in the United States. [ 1 ] [ 2 ] The motocross series was an invitational based on a combined 250 and 500cc engine displacement formula, run on American tracks featuring the top ...
The 1972 Trans-AMA motocross series was the third annual international series established by the American Motorcyclist Association as a pilot event to help establish motocross in the United States. The motocross series was an invitational based on a 500cc engine displacement formula, run on American tracks featuring the top riders from the F.I ...
The 1971 Trans-AMA motocross series was the second annual international series established by the American Motorcyclist Association as a pilot event to help establish motocross in the United States. The motocross series was an invitational based on a 500cc engine displacement formula, run on American tracks featuring the top riders from the F.I ...