What does the tire size 22545r18 mean?

1 Answers
KevinFitz
07/29/25 5:31pm
Tire 225 represents the tire's section width of 225 millimeters, 45 represents the tire's aspect ratio, which is the percentage of the tire's section height divided by its width, R stands for radial tire, and 18 indicates the rim diameter of 18 inches. Below is some relevant information about tires: 1. Tire lifespan: The wear life of a tire is between 30,000 to 50,000 kilometers. If the tire hasn't reached the wear limit or mileage but has been in use for 5 years or has developed numerous cracks on the sidewall, it should be replaced. 2. Tire material: The main component of a tire is rubber. The maximum storage and anti-aging time for rubber, from natural latex to ethylene propylene and nitrile, does not exceed 10 years. The average service life for various rubber products in use is 3-5 years.
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