Caravan Spare Tyres & Tread Depth
It is strongly recommended that a compatible spare wheel and tyre assembly is carried for the caravan. As caravan tyres and wheels are rarely the same as those on the towing vehicle, the spare tyre and wheel assembly from the towing vehicle must not be used on the caravan, even in an emergency situation. The caravan spare tyre should be the same size, load index and speed rating to those already fitted to the axle.
When checking the pressures and condition of the tyres on the towing vehicle, remember to check the spare tyre as well.