T means that the maximum speed available for the tire is 190 km / h, and H means that the maximum speed available for the tire is 210 km / h.
This is the speed symbol of the tire, also known as the speed grade of the tire, which refers to the maximum speed allowed to be used within the specified time under the specified road grade and rim nominal diameter. The pattern of class H tire is generally serrated pattern, which can improve the ride comfort and reliability of the vehicle.
According to the maximum speed that can be carried, the speed grade of tire can be divided into 24 different grades A-Z (without grade I and o), in which grade a can be subdivided into 8 different grades a1-a8.
Q (160km / h) - Y (300km / h) tyres are common in our daily life.