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 team mates 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

PlaceRiderCountryTeamPointsWins
1 Sylvain GeboersBelgiumSuzuki30663
2 Adolf WeilGermanyMaico23312
3 Torleif HansenSwedenHusqvarna20520
4 Roger De CosterBelgiumSuzuki18653
5 Joel RobertBelgiumSuzuki17301
6 Heikki MikkolaFinlandHusqvarna16802
7 Willy BauerGermanyMaico12760
8 Gaston RahierBelgiumČZ11120
9 Pierre KarsmakersNetherlandsHusqvarna11100
10 Dave BickersUnited KingdomČZ10760
11 John BanksUnited KingdomČZ9710
12 Andy RobertonUnited KingdomHusqvarna8100
13 Vlastimil ValekCzechoslovakiaČZ7090
14 Mark BlackwellUnited StatesHusqvarna6040
15 Brad LackeyUnited StatesČZ6030
16 Gary JonesUnited StatesYamaha4390
17 John DeSotoUnited StatesSuzuki4250
18 Chris HorsefieldUnited KingdomČZ4160
19 Uno PalmSwedenHusqvarna3240
20 Peter LamppuUnited StatesMontesa3090

1971 Trans-AMA Round 1

Sep. 19, 1971, Carlsbad, California
PlaceRiderCountryTeam
1 Sylvain GeboersBelgiumSuzuki
2 Torleif HansenSwedenHusqvarna
3 Dave BickersUnited KingdomČZ
4 Brad LackeyUnited StatesČZ
5 John BanksUnited KingdomČZ
6 Gary JonesUnited StatesYamaha
7 Vlastimil ValekCzechoslovakiaČZ
8 Tore JonssonUnited StatesMaico
9 John DeSotoUnited StatesSuzuki
10 Bryan KenneyUnited StatesHusqvarna

1971 Trans-AMA Round 2

Sep. 26, 1971, Boise, Idaho
PlaceRiderCountryTeam
1 Sylvain GeboersBelgiumSuzuki
2 Gaston RahierBelgiumČZ
3 Torleif HansenSwedenHusqvarna
4 John BanksUnited KingdomČZ
5 Dave BickersUnited KingdomČZ
6 Vlastimil ValekCzechoslovakiaČZ
7 Bill ClementsUnited StatesHusqvarna
8 Brad LackeyUnited StatesČZ
9 John DeSotoUnited StatesSuzuki
10 Gary JonesUnited StatesYamaha

1971 Trans-AMA Round 3

Oct. 3, 1971, Elkhorn, Wisconsin
PlaceRiderCountryTeam
1 Adolf WeilGermanyMaico
2 Sylvain GeboersBelgiumSuzuki
3 Torleif HansenSwedenHusqvarna
4 Mark BlackwellUnited StatesHusqvarna
5 Gaston RahierBelgiumČZ
6 Pierre KarsmakersNetherlandsHusqvarna
7 Willy BauerGermanyMaico
8 Bill ClementsUnited StatesHusqvarna
9 John BanksUnited KingdomČZ
10 Peter LamppuUnited StatesMontesa

1971 Trans-AMA Round 4

Oct. 10, 1971, Unadilla, New York
PlaceRiderCountryTeam
1 Adolf WeilGermanyMaico
2 Torleif HansenSwedenHusqvarna
3 Sylvain GeboersBelgiumSuzuki
4 Gaston RahierBelgiumČZ
5 Heikki MikkolaFinlandHusqvarna
6 Dave BickersUnited KingdomČZ
7 Tore JonssonUnited StatesMaico
8 Vlastimil ValekCzechoslovakiaČZ
9 Barry HigginsUnited StatesČZ
10 Peter LamppuUnited StatesMontesa

1971 Trans-AMA Round 5

Oct. 24, 1971, Delta, Ohio
PlaceRiderCountryTeam
1 Heikki MikkolaFinlandHusqvarna
2 Torleif HansenSwedenHusqvarna
3 Sylvain GeboersBelgiumSuzuki
4 Roger De CosterBelgiumSuzuki
5 Uno PalmSwedenHusqvarna
6 Adolf WeilGermanyMaico
7 Dave BickersUnited KingdomČZ
8 Pierre KarsmakersNetherlandsHusqvarna
9 Joel RobertBelgiumSuzuki
10 Willy BauerGermanyMaico

1971 Trans-AMA Round 6

Oct. 31, 1971, Orlando, Florida
PlaceRiderCountryTeam
1 Sylvain GeboersBelgiumSuzuki
2 Heikki MikkolaFinlandHusqvarna
3 Pierre KarsmakersNetherlandsHusqvarna
4 John BanksUnited KingdomČZ
5 Adolf WeilGermanyMaico
6 Vlastimil ValekCzechoslovakiaČZ
7 Willy BauerGermanyMaico
8 Andy RobertonUnited KingdomHusqvarna
9 Gaston RahierBelgiumČZ
10 John DeSotoUnited StatesSuzuki

1971 Trans-AMA Round 7

Nov. 7, 1971, St. Peters, Missouri
PlaceRiderCountryTeam
1 Heikki MikkolaFinlandHusqvarna
2 Joel RobertBelgiumSuzuki
3 Sylvain GeboersBelgiumSuzuki
4 Adolf WeilGermanyMaico
5 Torleif HansenSwedenHusqvarna
6 Willy BauerGermanyMaico
7 Pierre KarsmakersNetherlandsHusqvarna
8 Gaston RahierBelgiumČZ
9 Andy RobertonUnited KingdomHusqvarna
10 John BanksUnited KingdomČZ

1971 Trans-AMA Round 8

Nov. 14, 1971, Tulsa, Oklahoma
PlaceRiderCountryTeam
1 Roger De CosterBelgiumSuzuki
2 Joel RobertBelgiumSuzuki
3 Torleif HansenSwedenHusqvarna
4 Sylvain GeboersBelgiumSuzuki
5 Adolf WeilGermanyMaico
6 Pierre KarsmakersNetherlandsHusqvarna
7 Chris HorsefieldUnited KingdomČZ
8 Willy BauerGermanyMaico
9 Brad LackeyUnited StatesČZ
10 Andy RobertonUnited KingdomHusqvarna

1971 Trans-AMA Round 9

Nov. 21, 1971, Puyallup, Washington
PlaceRiderCountryTeam
1 Joel RobertBelgiumSuzuki
2 Roger De CosterBelgiumSuzuki
3 Sylvain GeboersBelgiumSuzuki
4 Adolf WeilGermanyMaico
5 Andy RobertonUnited KingdomHusqvarna
6 Pierre KarsmakersNetherlandsHusqvarna
7 Willy BauerGermanyMaico
8 Mark BlackwellUnited StatesHusqvarna
9 John DeSotoUnited StatesSuzuki
10 Gaston RahierBelgiumČZ

1971 Trans-AMA Round 10

Nov. 28, 1971, Livermore, California
PlaceRiderCountryTeam
1 Roger De CosterBelgiumSuzuki
2 Andy RobertonUnited KingdomHusqvarna
3 Adolf WeilGermanyMaico
4 Joel RobertBelgiumSuzuki
5 Sylvain GeboersBelgiumSuzuki
6 Willy BauerGermanyMaico
7 Pierre KarsmakersNetherlandsHusqvarna
8 Gaston RahierBelgiumČZ
9 Chris HorsefieldUnited KingdomČZ
10 Dave BickersUnited KingdomČZ

1971 Trans-AMA Round 11

Dec. 5, 1971, Saddleback Park, California
PlaceRiderCountryTeam
1 Roger De CosterBelgiumSuzuki
2 Joel RobertBelgiumSuzuki
3 Sylvain GeboersBelgiumSuzuki
4 Adolf WeilGermanyMaico
5 Dave BickersUnited KingdomČZ
6 Andy RobertonUnited KingdomHusqvarna
7 Vic EastwoodUnited KingdomAJS
8 Mark BlackwellUnited StatesHusqvarna
9 Gary JonesUnited StatesYamaha
10 Gaston RahierBelgiumČZ