# 1971 Trans-AMA motocross series

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 final standings

| Place | Rider | Country | Team | Points | Wins |
| 1 | Sylvain Geboers | Belgium | Suzuki | 3066 | 3 |
| 2 | Adolf Weil | Germany | Maico | 2331 | 2 |
| 3 | Torleif Hansen | Sweden | Husqvarna | 2052 | 0 |
| 4 | Roger De Coster | Belgium | Suzuki | 1865 | 3 |
| 5 | Joel Robert | Belgium | Suzuki | 1730 | 1 |
| 6 | Heikki Mikkola | Finland | Husqvarna | 1680 | 2 |
| 7 | Willy Bauer | Germany | Maico | 1276 | 0 |
| 8 | Gaston Rahier | Belgium | ČZ | 1112 | 0 |
| 9 | Pierre Karsmakers | Netherlands | Husqvarna | 1110 | 0 |
| 10 | Dave Bickers | United Kingdom | ČZ | 1076 | 0 |
| 11 | John Banks | United Kingdom | ČZ | 971 | 0 |
| 12 | Andy Roberton | United Kingdom | Husqvarna | 810 | 0 |
| 13 | Vlastimil Valek | Czechoslovakia | ČZ | 709 | 0 |
| 14 | Mark Blackwell | United States | Husqvarna | 604 | 0 |
| 15 | Brad Lackey | United States | ČZ | 603 | 0 |
| 16 | Gary Jones | United States | Yamaha | 439 | 0 |
| 17 | John DeSoto | United States | Suzuki | 425 | 0 |
| 18 | Chris Horsefield | United Kingdom | ČZ | 416 | 0 |
| 19 | Uno Palm | Sweden | Husqvarna | 324 | 0 |
| 20 | Peter Lamppu | United States | Montesa | 309 | 0 |

## 1971 Trans-AMA Round 1

Sep. 19, 1971, Carlsbad, California
| Place | Rider | Country | Team |
| 1 | Sylvain Geboers | Belgium | Suzuki |
| 2 | Torleif Hansen | Sweden | Husqvarna |
| 3 | Dave Bickers | United Kingdom | ČZ |
| 4 | Brad Lackey | United States | ČZ |
| 5 | John Banks | United Kingdom | ČZ |
| 6 | Gary Jones | United States | Yamaha |
| 7 | Vlastimil Valek | Czechoslovakia | ČZ |
| 8 | Tore Jonsson | United States | Maico |
| 9 | John DeSoto | United States | Suzuki |
| 10 | Bryan Kenney | United States | Husqvarna |

## 1971 Trans-AMA Round 2

Sep. 26, 1971, Boise, Idaho
| Place | Rider | Country | Team |
| 1 | Sylvain Geboers | Belgium | Suzuki |
| 2 | Gaston Rahier | Belgium | ČZ |
| 3 | Torleif Hansen | Sweden | Husqvarna |
| 4 | John Banks | United Kingdom | ČZ |
| 5 | Dave Bickers | United Kingdom | ČZ |
| 6 | Vlastimil Valek | Czechoslovakia | ČZ |
| 7 | Bill Clements | United States | Husqvarna |
| 8 | Brad Lackey | United States | ČZ |
| 9 | John DeSoto | United States | Suzuki |
| 10 | Gary Jones | United States | Yamaha |

## 1971 Trans-AMA Round 3

Oct. 3, 1971, Elkhorn, Wisconsin
| Place | Rider | Country | Team |
| 1 | Adolf Weil | Germany | Maico |
| 2 | Sylvain Geboers | Belgium | Suzuki |
| 3 | Torleif Hansen | Sweden | Husqvarna |
| 4 | Mark Blackwell | United States | Husqvarna |
| 5 | Gaston Rahier | Belgium | ČZ |
| 6 | Pierre Karsmakers | Netherlands | Husqvarna |
| 7 | Willy Bauer | Germany | Maico |
| 8 | Bill Clements | United States | Husqvarna |
| 9 | John Banks | United Kingdom | ČZ |
| 10 | Peter Lamppu | United States | Montesa |

## 1971 Trans-AMA Round 4

Oct. 10, 1971, Unadilla, New York
| Place | Rider | Country | Team |
| 1 | Adolf Weil | Germany | Maico |
| 2 | Torleif Hansen | Sweden | Husqvarna |
| 3 | Sylvain Geboers | Belgium | Suzuki |
| 4 | Gaston Rahier | Belgium | ČZ |
| 5 | Heikki Mikkola | Finland | Husqvarna |
| 6 | Dave Bickers | United Kingdom | ČZ |
| 7 | Tore Jonsson | United States | Maico |
| 8 | Vlastimil Valek | Czechoslovakia | ČZ |
| 9 | Barry Higgins | United States | ČZ |
| 10 | Peter Lamppu | United States | Montesa |

## 1971 Trans-AMA Round 5

Oct. 24, 1971, Delta, Ohio
| Place | Rider | Country | Team |
| 1 | Heikki Mikkola | Finland | Husqvarna |
| 2 | Torleif Hansen | Sweden | Husqvarna |
| 3 | Sylvain Geboers | Belgium | Suzuki |
| 4 | Roger De Coster | Belgium | Suzuki |
| 5 | Uno Palm | Sweden | Husqvarna |
| 6 | Adolf Weil | Germany | Maico |
| 7 | Dave Bickers | United Kingdom | ČZ |
| 8 | Pierre Karsmakers | Netherlands | Husqvarna |
| 9 | Joel Robert | Belgium | Suzuki |
| 10 | Willy Bauer | Germany | Maico |

## 1971 Trans-AMA Round 6

Oct. 31, 1971, Orlando, Florida
| Place | Rider | Country | Team |
| 1 | Sylvain Geboers | Belgium | Suzuki |
| 2 | Heikki Mikkola | Finland | Husqvarna |
| 3 | Pierre Karsmakers | Netherlands | Husqvarna |
| 4 | John Banks | United Kingdom | ČZ |
| 5 | Adolf Weil | Germany | Maico |
| 6 | Vlastimil Valek | Czechoslovakia | ČZ |
| 7 | Willy Bauer | Germany | Maico |
| 8 | Andy Roberton | United Kingdom | Husqvarna |
| 9 | Gaston Rahier | Belgium | ČZ |
| 10 | John DeSoto | United States | Suzuki |

## 1971 Trans-AMA Round 7

Nov. 7, 1971, St. Peters, Missouri
| Place | Rider | Country | Team |
| 1 | Heikki Mikkola | Finland | Husqvarna |
| 2 | Joel Robert | Belgium | Suzuki |
| 3 | Sylvain Geboers | Belgium | Suzuki |
| 4 | Adolf Weil | Germany | Maico |
| 5 | Torleif Hansen | Sweden | Husqvarna |
| 6 | Willy Bauer | Germany | Maico |
| 7 | Pierre Karsmakers | Netherlands | Husqvarna |
| 8 | Gaston Rahier | Belgium | ČZ |
| 9 | Andy Roberton | United Kingdom | Husqvarna |
| 10 | John Banks | United Kingdom | ČZ |

## 1971 Trans-AMA Round 8

Nov. 14, 1971, Tulsa, Oklahoma
| Place | Rider | Country | Team |
| 1 | Roger De Coster | Belgium | Suzuki |
| 2 | Joel Robert | Belgium | Suzuki |
| 3 | Torleif Hansen | Sweden | Husqvarna |
| 4 | Sylvain Geboers | Belgium | Suzuki |
| 5 | Adolf Weil | Germany | Maico |
| 6 | Pierre Karsmakers | Netherlands | Husqvarna |
| 7 | Chris Horsefield | United Kingdom | ČZ |
| 8 | Willy Bauer | Germany | Maico |
| 9 | Brad Lackey | United States | ČZ |
| 10 | Andy Roberton | United Kingdom | Husqvarna |

## 1971 Trans-AMA Round 9

Nov. 21, 1971, Puyallup, Washington
| Place | Rider | Country | Team |
| 1 | Joel Robert | Belgium | Suzuki |
| 2 | Roger De Coster | Belgium | Suzuki |
| 3 | Sylvain Geboers | Belgium | Suzuki |
| 4 | Adolf Weil | Germany | Maico |
| 5 | Andy Roberton | United Kingdom | Husqvarna |
| 6 | Pierre Karsmakers | Netherlands | Husqvarna |
| 7 | Willy Bauer | Germany | Maico |
| 8 | Mark Blackwell | United States | Husqvarna |
| 9 | John DeSoto | United States | Suzuki |
| 10 | Gaston Rahier | Belgium | ČZ |

## 1971 Trans-AMA Round 10

Nov. 28, 1971, Livermore, California
| Place | Rider | Country | Team |
| 1 | Roger De Coster | Belgium | Suzuki |
| 2 | Andy Roberton | United Kingdom | Husqvarna |
| 3 | Adolf Weil | Germany | Maico |
| 4 | Joel Robert | Belgium | Suzuki |
| 5 | Sylvain Geboers | Belgium | Suzuki |
| 6 | Willy Bauer | Germany | Maico |
| 7 | Pierre Karsmakers | Netherlands | Husqvarna |
| 8 | Gaston Rahier | Belgium | ČZ |
| 9 | Chris Horsefield | United Kingdom | ČZ |
| 10 | Dave Bickers | United Kingdom | ČZ |

## 1971 Trans-AMA Round 11

Dec. 5, 1971, Saddleback Park, California
| Place | Rider | Country | Team |
| 1 | Roger De Coster | Belgium | Suzuki |
| 2 | Joel Robert | Belgium | Suzuki |
| 3 | Sylvain Geboers | Belgium | Suzuki |
| 4 | Adolf Weil | Germany | Maico |
| 5 | Dave Bickers | United Kingdom | ČZ |
| 6 | Andy Roberton | United Kingdom | Husqvarna |
| 7 | Vic Eastwood | United Kingdom | AJS |
| 8 | Mark Blackwell | United States | Husqvarna |
| 9 | Gary Jones | United States | Yamaha |
| 10 | Gaston Rahier | Belgium | ČZ |