¿Cuál será la velocidad máxima genérica para un vehículo especial que carece de señalización de frenado?

The speeds for special vehicles, and for combinations of vehicles that count as special even if only one of the vehicles in the combination is special, are: if they have no brake light signals, are towing a trailer or are single-axle tractors (motocultores), 25 kilometres per hour; other special vehicles, 40 kilometres per hour, except when, because of their features, they can reach more than 60 kilometres per hour on level ground and they meet the conditions set out in the vehicle regulations; in that case, the maximum speed is 70 kilometres per hour.