There are too many characters on the tire, and their meanings are different. The following is a specific illustration of common signs to facilitate the daily identification of the owner:

Specification:

tyre size is usually represented by numbers and English letters:

195/55R15? Take 86H 8P.R as an example:

A, the first number 195 indicates the tire section width (mm);

B, the second number 55 indicates flatness ratio (%);

C, the third number 15 indicates the rim size (inch)

D, if there is an English symbol such as R, Z, X, D or "-"in the middle:

1, "X" indicates a high-pressure tire;

2, "r" and "z" represent radial tires;

4, "d" indicates bias;

5, "-"indicates a low-pressure tire;

E and "86H" 86 are the load index, h is the speed mark (representing the maximum speed of 21KM/h)

F and" 8P.R "represent the tire grade

when it is 8.25-2N(G/M/N/R).

A, the number 8.25 in front is the section width;

B, the back 2 is the rim diameter;

1. "n" is a nylon tire;

2, "g" is a steel tire;

3, "m" is cotton thread;

4. "r" is rayon.

speed grade: speed grade refers to the maximum speed that a tire can reach under the specified load and air pressure standards, and refer to the relevant letters to correspond to the speed:

load index: load index refers to the maximum load capacity of a single tire under the specified conditions. Refer to the following table:

load pressure index (expressed in Kpa and Kg):

wear marks (expressed in different ways, some with arrows, some with triangles, and some in other ways). According to national standards, the wear limit of radial tire pattern for cars is 1.6mm, and that of radial tire pattern for trucks and buses is 2.mm

Wear index strength: usually in digital form.

traction performance: AA is generally excellent:

The normal working temperature or the maximum temperature tolerance index of a tire is usually expressed by three levels: A, B and C..