A The speed symbol and load index shown on a tire correspond to the tire's maximum speed capability and its maximum load-carrying capacity.
Speed symbol indicates the maximum speed at which the weight (with the exception of weight when speed is equal to or exceeds 210 km/h) designated by the manufacturing company can be supported by the tire.
*1mph(mile/h)=1.6093km/h
Load index is a numerical code stipulating the maximum load each tire can carry.For example, if the load index is 100, it means that a tire can carry a load up to 800kg.