As the important transportation, the trailer is a container on wheels which is pulled by a car or other vehicle and which is used for transporting large or heavy items. To all the parts of the trailers, the trailer tyres are of great importance to the whole driving. The trailer tyre is the only connection between the trailer and the road surface. Trailer tyres undertake all the trailer weight which is more than 50 times than its own weight. The main function of the trailer tyre is to absorb the impact force between the trailer and the barrier in order to protect the trailer body.
