1991 United States motorcycle Grand Prix
| Race details | ||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Race 3 of 15 races in the 1991 Grand Prix motorcycle racing season | ||||||||||||||||||||||||||||||||||
| Date | April 21, 1991 | |||||||||||||||||||||||||||||||||
| Official name | United States International Grand Prix | |||||||||||||||||||||||||||||||||
| Location | Laguna Seca Raceway | |||||||||||||||||||||||||||||||||
| Course |
| |||||||||||||||||||||||||||||||||
| 500cc | ||||||||||||||||||||||||||||||||||
| ||||||||||||||||||||||||||||||||||
| 250cc | ||||||||||||||||||||||||||||||||||
| ||||||||||||||||||||||||||||||||||
| Sidecar (B2A) | ||||||||||||||||||||||||||||||||||
| ||||||||||||||||||||||||||||||||||
Preview warning: Page using Template:Infobox Grand Prix motorcycle race report with unknown parameter "Pole_Passenger_Sidecar_Co..."
Preview warning: Page using Template:Infobox Grand Prix motorcycle race report with unknown parameter "Second_Passenger_Sidecar_..."
Preview warning: Page using Template:Infobox Grand Prix motorcycle race report with unknown parameter "Third_Passenger_Sidecar_C..."
Preview warning: Page using Template:Infobox Grand Prix motorcycle race report with unknown parameter "Fast_Passenger_Sidecar"
Preview warning: Page using Template:Infobox Grand Prix motorcycle race report with unknown parameter "Fast_Passenger_Sidecar_Co..."
Preview warning: Page using Template:Infobox Grand Prix motorcycle race report with unknown parameter "Pole_Passenger_Sidecar"
Preview warning: Page using Template:Infobox Grand Prix motorcycle race report with unknown parameter "Third_Passenger_Sidecar"
Preview warning: Page using Template:Infobox Grand Prix motorcycle race report with unknown parameter "Second_Passenger_Sidecar"
Preview warning: Page using Template:Infobox Grand Prix motorcycle race report with unknown parameter "First_Passenger_Sidecar"
Preview warning: Page using Template:Infobox Grand Prix motorcycle race report with unknown parameter "First_Passenger_Sidecar_C..."
The 1991 United States Motorcycle Grand Prix was the third round of the 1991 FIM Grand Prix motorcycle roadracing season, held on the weekend of April 19–21, 1991 at Laguna Seca Raceway. This event featured no fewer than four American riders on competitive equipment, plus two more on B-level machines, during the era of U.S. domination.