What Do Tire Size Numbers Mean?
1 Answers
Tire size refers to the dimensions of a tire. Generally, the size of tires used on vehicles is printed on the sidewall of the tire. Different types of vehicles use different tire sizes. Meaning of tire size markings: Take a tire with the model number 250/60R1589H as an example. In this set of parameters, different letters represent different meanings. Here, 250 represents the width of the tire, which is essentially the part of the tire that comes into contact with the ground. The wider the tire used on a car, the larger the contact area with the ground, resulting in better stability during actual driving. 60 represents the aspect ratio of the tire, which is the ratio of the height from the rim to the tread relative to the tire's maximum cross-sectional width. This value is usually expressed as a percentage. R stands for radial tire. Generally, household cars use radial tires, which are widely used in family vehicles. 15 represents the size of the tire, specifically the inner diameter. 89 indicates the maximum load capacity of the tire, which should not be exceeded during vehicle use. H represents the maximum speed rating of the tire, and this speed should not be exceeded while driving. Tire maintenance methods are as follows: Perform wheel alignment and tire rotation regularly. For vehicles driven under normal road conditions, it is recommended to perform wheel alignment and tire rotation every 10,000 kilometers. Misaligned wheels and prolonged lack of tire rotation may cause the vehicle to pull to one side and result in abnormal tread wear. Regularly check tire pressure. Tire maintenance also includes periodic pressure checks. Overinflated tires can significantly reduce tire lifespan, while underinflated tires may lead to poor braking performance, difficulty in steering, or heavy steering, and also shorten the tire's service life.
