[Konstantinos]

You cannot compare like that. You would've to check if the carid is N everytime BUT.. switch is faster:

pawn Код:

stock IsAMotorcycle(carid)
{
    switch (carid)
    {
        case 448, 461 .. 463, 468, 471, 521 .. 523, 581, 586: return 1;
    }
    return 0;
}

Make sure that when you use that function, you use GetVehicleModel.

pawn Код:

if (IsAMotorcycle(GetVehicleModel(vehicleid))) ...