Never drive more than 80 km/h with the Freetrailer.Max 80 km/h on the highwayMax 70 km/h on country roadsMax 70 km/h in the urban zone (depending on signage). NOTE In most cities there is a speed limit of 50 km/h.All our trailers have inertia brakes.Please note, our trailers are NOT tempo 100 approved.