How fast are you allowed to drive a car with a coupled trailer without brakes?

How fast you are allowed to drive a car with a coupled trailer without brakes depends on the weight of the trailer and the car.

Speed limitations for trailers

• Max 80 km/h applies for a car with a coupled trailer with brakes.
• Max 80 km/h applies for a car with a coupled trailer without brakes if the trailer's total weight (or kerb weight when it is not loaded) does not exceed half of the car's kerb weight.
• Max 40 km/h applies for a car with a coupled trailer without brakes if the trailer's total weight (or kerb weight when it is not loaded) exceeds half of the car's kerb weight.