| Year | Photo | Engine | Power | Weight | Seat | Fields |
|---|---|---|---|---|---|---|
| 1989 |  |
125 cc | 10 hp | 127 kg | – | 24 |
| 1988 |  |
125 cc | 10 hp | 127 kg | – | 24 |
| 1987 | |
125 cc | 10 hp | 127 kg | – | 24 |
| 1986 | |
125 cc | 10 hp | 127 kg | – | 24 |
| 1985 | |
125 cc | 10 hp | 127 kg | – | 24 |
| 1984 |  |
125 cc | 10 hp | 127 kg | – | 24 |
| 1983 |  |
125 cc | 10 hp | 127 kg | – | 24 |
| 1982 |  |
125 cc | 10 hp | 127 kg | – | 24 |
| 1981 |  |
125 cc | 18 hp | 125 kg | – | 23 |
| 1980 | |
125 cc | 18 hp | 125 kg | – | 23 |