What does 215/60R17 on a tire mean?

[DominicDella]

215/60R17 indicates that the tire has a tread width of 215 mm, an aspect ratio of 60%, and an inner diameter of 17 inches. Below is a detailed introduction to car tire specifications: 1. Specification model representation: Tires are important components of a car, and there are many specification models of tires, with different models suitable for different types of vehicles. The specification model identification is usually on the sidewall of the tire, represented by a series of alphanumeric characters, corresponding to the tire's tread width, aspect ratio, type, rim size, load index, and speed rating. 2. Speed rating: Based on the maximum speed they can withstand, tires can be divided into different speed ratings from A to Z, with the A rating further subdivided into eight different levels from A1 to A8. The further back the letter representing the tire's speed rating is in the alphabet, the better the tire's performance.