What are the specifications of automobile tires?
The tire specifications are usually represented by a set of figures. The first figure represents the width of the section of the tire, and the latter represents the diameter of the rim, in inches. For example, 165 / 70R14 represents a tire width of 165 mm, a flat rate of 70, and a rim diameter of 14 inches. The middle letters or symbols have special meanings: "X" means high pressure tyres; "R" and "Z" represent radial tyres; "1" means low pressure tyres.
Someone will tire analogy people wear shoes, this is OK, but not heard of the sole burst can kill the story, and the tyre burst resulting in fatal car crash news is heard. From this point of view, the importance of tires to vehicles far exceeds the importance of shoes to people. Therefore, the correct use of tires not only has an impact on the operation of the car, but also has more important impact on the safety of the car.
Hierarchy refers to the nominal number of plies in the tire rubber layer, which is not consistent with the actual ply number. It is an important indicator of tire strength. Levels are marked in Chinese, such as 12 levels. In English, such as "14P.R", that is, the 14 level.
