250 Cc Classification
| Pos | Rider | Manufacturer | Laps | Time | Grid | Points |
|---|---|---|---|---|---|---|
| 1 | Luca Cadalora | Honda | 30 | 39:29.951 | 2 | 20 |
| 2 | Helmut Bradl | Honda | 30 | +0.009 | 1 | 17 |
| 3 | Pierfrancesco Chili | Aprilia | 30 | +8.179 | 3 | 15 |
| 4 | Loris Reggiani | Aprilia | 30 | +8.186 | 5 | 13 |
| 5 | Wilco Zeelenberg | Honda | 30 | +14.795 | 7 | 11 |
| 6 | Carlos Cardús | Honda | 30 | +14.983 | 4 | 10 |
| 7 | Masahiro Shimizu | Honda | 30 | +33.909 | 8 | 9 |
| 8 | Jochen Schmid | Honda | 30 | +52.658 | 11 | 8 |
| 9 | Andreas Preining | Aprilia | 30 | +53.825 | 14 | 7 |
| 10 | Paolo Casoli | Yamaha | 30 | +1:03.005 | 13 | 6 |
| 11 | Jean-Pierre Jeandat | Honda | 30 | +1:04.911 | 5 | |
| 12 | Erkka Korpiaho | Aprilia | 30 | +1:09.379 | 4 | |
| 13 | Renzo Colleoni | Aprilia | 30 | +1:09.886 | 3 | |
| 14 | Carlos Lavado | Yamaha | 30 | +1:17.145 | 12 | 2 |
| 15 | Stefan Prein | Honda | 29 | +1 lap | 1 | |
| 16 | Harald Eckl | Aprilia | 29 | +1 lap | ||
| 17 | Jaime Mariano | Aprilia | 29 | +1 lap | ||
| 18 | Urs Jucker | Yamaha | 29 | +1 lap | ||
| 19 | Martin Wimmer | Suzuki | 29 | +1 lap | 10 | |
| 20 | Renato Colleoni | Aprilia | 29 | +1 lap | ||
| 21 | Patrick van der Goorbergh | Yamaha | 29 | +1 lap | ||
| 22 | Bernd Kassner | Honda | 29 | +1 lap | ||
| 23 | Wayne Doran | Aprilia | 29 | +1 lap | ||
| 24 | Jean Foray | Yamaha | 29 | +1 lap | ||
| Ret | Corrado Catalano | Honda | 26 | Retired | ||
| Ret | Stefano Pennese | Aprilia | 22 | Retired | ||
| Ret | Frédéric Protat | Aprilia | 19 | Retired | ||
| Ret | Doriano Romboni | Honda | 18 | Retired | 6 | |
| Ret | Fausto Ricci | Yamaha | 18 | Retired | ||
| Ret | Àlex Crivillé | JJ Cobas | 15 | Retired | 9 | |
| Ret | Bernard Hänggeli | Aprilia | 15 | Retired | 15 | |
| Ret | Alberto Puig | Yamaha | 13 | Retired | ||
| Ret | Marcellino Lucchi | Aprilia | 13 | Retired | ||
| Ret | Ian Newton | Yamaha | 8 | Retired | ||
| Ret | Leon van der Heyden | Honda | 1 | Retired | ||
Read more about this topic: 1991 Italian Motorcycle Grand Prix