What kind of tire cracks require replacement?

[Morris]

Cracks that are too long or deep, reaching the standard depth of the tire tread (1.6 mm), require replacement. Below are specific details about tire replacement: 1. The normal lifespan of a tire is generally five years. After about three years of use, small cracks may appear, which are normal signs of aging, cracking, or wear. These may not require immediate replacement but should be regularly inspected. 2. If cracks appear on the tire sidewall, it is necessary to promptly visit a shop for inspection and replace the tire if needed. The sidewall is the most vulnerable part of the tire, and continued driving may lead to a blowout. 3. If the cracks are excessively long or deep, reaching the standard tread depth of 1.6 mm, replacement is required. 4. Additionally, if bulges appear on the tire, replacement is necessary. Bulges are a common issue with tires, usually caused by impacts that break the internal metal wires. Driving at high speeds or over long distances with bulges significantly increases the risk of a blowout and potential accidents, so drivers should be cautious.