What Does the Car Tire Model Number Represent?
1 Answers
"Taking the tire model 195/55R15 as an example, 195 represents the tire width of 195 millimeters, 55 indicates the aspect ratio of 55%, R stands for radial tire type, and 15 is the rim diameter, meaning this tire model fits a 15-inch rim. If there is an additional number followed by +V, the number represents the maximum load a tire can bear. The higher the number, the greater the load capacity. V denotes the speed rating, which is the maximum speed the tire can safely handle. Different numbers correspond to different speed levels, and exceeding the tire's maximum speed may lead to dangers such as blowouts. Typically, there are also four digits preceding the data, such as 2515, which indicate the tire's manufacturing date. 2515 means the tire was produced in the 25th week of 2015. There may be other letters or numbers, but these usually represent brand names or brand identifiers. Tires cannot be swapped arbitrarily. Car tire specifications are determined based on comprehensive analysis and testing of vehicle suspension data, transmission, and engine gear ratios, among other factors. Swapping tires of different models can affect the car's stability, load capacity, power performance, steering angle, braking distance, and suspension height. For driving safety, it is crucial not to change tires randomly. "
