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.M. world championship against the top American riders.

Suzuki factory rider Sylvain Geboers claimed the championship with three overall victories. German Maico rider, Adolf Weil scored two overall victories and claimed second place in the championship, with Swedish Husqvarna pilot Torlief Hansen taking third place. The Suzuki teammates of Joel Robert and Roger De Coster didn't join the event until the fifth race of the series, but made an impact with De Coster posting three overall victories with Robert adding one more. As a result of his being the highest placed American rider at fourteenth overall, Mark Blackwell, was crowned the American motocross national champion, clinching the title by one point over Brad Lackey.

1971 Trans-AMA rounds RoundDateLocationOverall WinnerTop American 1 19 September Carlsbad Raceway Sylvain Geboers Brad Lackey 2 26 September Boise, Idaho Sylvain Geboers Billy Clements 3 3 October Elkhorn, Wisconsin Adolf Weil Mark Blackwell 4 10 October New Berlin, New York Adolf Weil Tore Jonsson 5 24 October Delta, Ohio Heikki Mikkola Tore Jonsson 6 31 October Orlando, Florida Sylvain Geboers John DeSoto 7 7 November St. Peters, Missouri Heikki Mikkola Brad Lackey 8 14 November Tulsa, Oklahoma Roger De Coster Brad Lackey 9 21 November Puyallup, Washington Joël Robert Mark Blackwell 10 28 November Livermore, California Roger De Coster Mark Blackwell 11 3 December Irvine, California Roger De Coster Mark BlackwellSources:Trans-AMA Motocross Records, American Motorcyclist, January 1975, Vol. 29, No. 1,

1971 Trans-AMA final standings Pos Rider Machine 1 2 3 4 5 6 7 8 9 10 11 Pts 1 Sylvain Geboers Suzuki 1 1 2 3 3 1 3 4 3 5 3 3,066 2 Adolf Weil Maico 1 1 6 5 4 5 4 3 4 2,331 3 Torleif Hansen Husqvarna 2 3 3 2 2 5 3 2,052 4 Roger De Coster Suzuki 4 1 2 1 1 1,865 5 Joël Robert Suzuki 9 2 2 1 4 2 1,730 6 Heikki Mikkola Husqvarna 5 1 2 1 1,680 7 Willy Bauer Maico 7 10 7 6 8 7 6 1,276 8 Gaston Rahier ČZ 2 5 4 9 8 10 8 10 1,112 9 Pierre Karsmakers Husqvarna 6 8 3 7 6 6 7 1,110 10 Dave Bickers ČZ 3 5 6 7 10 5 1,076 11 John Banks ČZ 5 4 9 4 10 971 12 Andy Roberton Husqvarna 8 9 10 5 2 6 810 13 Vlastimil Válek ČZ 7 6 8 6 709 14 Mark Blackwell Husqvarna 4 8 8 604 15 Brad Lackey ČZ 4 8 9 603 16 Gary Jones Yamaha 6 10 9 439 17 John DeSoto Suzuki 9 9 10 9 425 18 Chris Horsefield ČZ 7 9 416 19 Uno Palm Husqvarna 5 324 20 Peter Lamppu Montesa 10 10 309 - Tore Jonsson Maico 8 7 - - Billy Clements Husqvarna 7 8 - - Vic Eastwood AJS 7 - - Barry Higgins Maico 9 - - Bryan Kenney Husqvarna 10 -Sources:

See also List of Trans-AMA motocross champions 1971 FIM Motocross World Championship 1971 Inter-AMA motocross series

External links American Motorcyclist, Dec 1971, Vol. 25, No. 12, ISSN 0277-9358 American Motorcyclist, January 1972, Vol. 26, No. 1, ISSN 0277-9358

References