What Does a Circle of Small Cracks on the Tire Sidewall Indicate?

[AnnaAnn]

Tire sidewall with a circle of small cracks indicates that the tire is aging and needs replacement. This has worn down to the tire's triangular limit mark, and the tire exhibits bulging, tread deformation, bead damage, sidewall crushing damage, or chemical corrosion. Tires with these issues all require replacement. Below is relevant information about tires: 1. Pay attention to the tire's shelf life: The sidewall of the tire will have a four-digit number indicating the manufacturing date, with the first two digits representing the week and the last two the year. Generally, tires should not be used for more than 3 years or exceed 60,000 kilometers in mileage. 2. Monitor the sidewall closely: As the tire rubber gradually ages, deep cracks will appear on the sidewall. However, as long as the sidewall has not been impacted and the cords are not broken, the tire can continue to be used. The triangular mark on the tire sidewall can help the owner locate a protrusion in the tread groove to determine the actual wear limit of the tire, which should be greater than 1.6 millimeters.