What is the model of car tires?
2 Answers
Automobile tire specifications and model parameters are expressed in millimeters to indicate the section width and the percentage of the aspect ratio. Following this are: the tire type code, rim diameter (in inches), load index (allowable load mass code), and allowable vehicle speed code. Below is more information about the markings on tires: 1. A string of letters will be printed on the sidewall: for example, 245/45-R18. This type of tire model is relatively common. 245 refers to the width of the tire, generally expressed in millimeters. The larger this number, the wider the tire. 45 refers to the aspect ratio of the tire. The smaller the number, the flatter the tire appears. This value is usually expressed as a percentage. R represents radial tires, and 18 represents the size of the wheel rim used. 2. A set of numbers following the tire size: these represent the tire's load index and speed limit values. Different letters represent different speed limits. Q represents a speed limit of 160 km/h, R represents 170 km/h, S represents 180 km/h, T represents 190 km/h, H represents 210 km/h, V represents 240 km/h, W represents 270 km/h, and Y represents 300 km/h. For specific speed limit values, you can refer to the standard values.
I've been driving for decades and have seen many tire issues. The model number is engraved on the sidewall, such as the common 205/55 R16. 205 represents the tire width in millimeters, 55 is the aspect ratio—the smaller the number, the more stable the handling but the less comfortable the ride. R stands for radial construction, and 16 is the rim size in inches. Choosing the right model is crucial; otherwise, the car may sway, and skidding in the rain becomes more dangerous. I also check the load index and speed rating—these numbers tell you how much weight the tire can bear or its maximum speed. For family cars in the city, an H rating is sufficient. Don't forget to check tire pressure during regular maintenance, as it directly affects fuel consumption and wear. In winter, switch to snow tires, ensuring the model matches to avoid accidents. Every time I change tires, I refer to the original manual—safe driving is the foundation.
