1974 Trans-AMA motocross series

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.M. world championship against the top American riders.

Suzuki factory rider Roger De Coster claimed the championship with four overall victories.[1] His Suzuki teammate, Dutchman Gerrit Wolsink took second place along with one overall victory. Maico factory rider Adolf Weil claimed third place, while the top American rider was Bultaco's Jim Pomeroy in fourth place.

1974 Trans-AMA rounds

Round Date Location Race 1 Winner Race 2 Winner Overall Winner Top American
1 6 October New Berlin, New York Roger De Coster Adolf Weil Roger De Coster Jim Pomeroy
2 13 October Linnville, Ohio Heikki Mikkola Adolf Weil Heikki Mikkola Jim Pomeroy
3 20 October Gainesville, Georgia Roger De Coster Roger De Coster Roger De Coster Jim Pomeroy
4 27 October Orlando, Florida Gerrit Wolsink Pierre Karsmakers Gerrit Wolsink Brad Lackey
5 10 November Lake Whitney, Texas Åke Jonsson Harry Everts Roger De Coster Steve Stackable
6 17 November Puyallup, Washington Harry Everts Roger De Coster Harry Everts Rich Thorwaldson
7 24 November Livermore, California Bengt Åberg Roger De Coster Roger De Coster Mike Runyard
8 1 December Irvine, California Pierre Karsmakers Roger De Coster Pierre Karsmakers Pierre Karsmakers*
*Karsmakers, a Dutch citizen racing under an American racing license is awarded Top American status after being the Overall Winner of Round 8.

Sources:[2][3][4]

1974 Trans-AMA final standings

(Results in italics indicate overall winner)

Pos Rider Machine Rnd.1 Rnd.2 Rnd.3 Rnd.4 Rnd.5 Rnd.6 Rnd.7 Rnd.8 Points
R1 R2 R1 R2 R1 R2 R1 R2 R1 R2 R1 R2 R1 R2 R1 R2
1 Roger De Coster Suzuki 1 2 1 1 2 2 5 1 6 1 3 1 900
2 Gerrit Wolsink Suzuki 3 3 2 1 3 11 7 7 4 530
3 Adolf Weil Maico 1 1 2 2 16 5 8 10 16 2 4 15 415
4 Jim Pomeroy Bultaco 2 8 3 4 3 3 22 5 20 2 3 399
5 Harry Everts Puch 8 10 6 12 7 1 1 2 344
6 Willy Bauer Maico 3 5 4 19 45 4 6 36 4 8 6 6 333
7 Yukio Sugio Yamaha 12 19 7 6 11 8 4 6 15 14 21 9 288
8 Brad Lackey Husqvarna 4 10 6 5 9 10 12 7 37 17 6 285
9 Arne Kring Husqvarna 9 4 4 9 3 19 7 12 270
10 Pierre Karsmakers Yamaha 4 32 1 6 13 1 2 233
11 Rich Thorwaldson Suzuki 2 15 6 8 5 8 13 10 12 -
12 Mike Runyard Suzuki 9 12 15 10 21 19 9 10 14 4 18 8 -
13 Bengt Åberg Husqvarna 5 7 42 8 26 4 1 41 -
14 Åke Jonsson Yamaha 42 2 1 45 -
15 Steve Stackable Maico 20 14 9 3 23 3 8 27 -
16 Håkan Andersson Yamaha 4 2 16 3 18 -
17 Hans Maisch Maico 11 4 20 3 5 17 -
18 Jimmy Weinert Kawasaki 6 13 2 42 9 22 -
19 Heikki Mikkola Husqvarna 1 3 -
20 Tony DiStefano Suzuki 7 9 12 13 20 18 -
21 Rex Staten Honda 15 15 20 16 3 41 13 26 -
22 Rich Eierstedt Honda 10 7 5 17 -
23 Vic Eastwood CCM 20 17 14 18 10 7 -
24 Sonny DeFeo Maico 17 22 17 20 19 16 11 13 25 16 -
25 Vic Allan Bultaco 12 9 11 14 -
26 Gary Jones Can-Am 23 11 24 11 15 10 -
27 Raymond Boven Montesa 9 10 16 13 -
28 Mike Hartwig Husqvarna 2 14 -
29 Gary Chaplin Maico 12 11 18 15 -
30 Koji Masuda Suzuki 13 21 14 11 -
31 Tim Hart Yamaha 16 18 20 7 -
32 Henning Hansen Yamaha 16 9 -
33 Bryar Holcomb Maico 19 16 18 15 -
34 Ivan Miller Penton 13 14 -
35 Jimmy Ellis Can-Am 33 7 -
36 Mark Blackwell Maico 22 20 19 12 -
37 Roger Harvey Cheney-BSA 23 23 17 17 -
38 Bill McLean Yamaha 21 15 -
39 Gordon Bowden Yamaha 18 23 -
40 Tom Kratzer Yamaha 24 18 -
41 Wayne Boyer Cheney-BSA 22 22 -
42 Trey Jorski Kawasaki 22 24 -
Sources only document the points awarded to the first ten competitors.

Sources:[2][3][4]

See also

References

  1. ^ Belair, Fernando (March 1, 1975). "1974 Trans-AMA Series". Cycle World. Retrieved March 9, 2025.
  2. ^ a b Trans-AMA Motocross Records, American Motorcyclist, January 1975, Vol. 29, No. 1, ISSN 0277-9358
  3. ^ a b De Coster Shines in Stockerland, American Motorcyclist, January 1975, Vol. 29, No. 1, ISSN 0277-9358
  4. ^ a b Roger Rakes the Trans-AMA, American Motorcyclist, February 1975, Vol. 29, No. 2, ISSN 0277-9358
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