Which Type of Tire Cracks Require Replacement?
2 Answers
Tire sidewall small cracks require replacement because the sidewall is the most vulnerable part of the tire, and continued driving may lead to a blowout. Tires are circular elastic rubber products mounted on various vehicles or machinery to roll on the ground. Typically installed on metal rims, tires support the vehicle body, absorb external shocks, maintain contact with the road surface, and ensure driving performance. Tires often operate under complex and harsh conditions, enduring various deformations, loads, forces, and extreme temperatures during use. Therefore, they must possess high load-bearing capacity, traction performance, and shock absorption. Additionally, they need to exhibit high wear resistance and flex resistance, along with low rolling resistance and heat generation.
A few days ago, I noticed fine cracks on the sidewall of my tire. At first, I thought it was nothing serious, but after researching online, I found that sidewall cracks are often the most dangerous because they are close to the rim and can easily damage the internal structure. If the cracks exceed a few millimeters in depth, the tire should be replaced immediately; otherwise, it could lead to a blowout and accidents at high speeds. During regular inspections, use your fingers to feel the depth and width of the cracks. If they are noticeably deep or show signs of rust penetration, it indicates potential internal moisture corrosion, significantly increasing safety risks. Additionally, cracks on the tread are relatively less severe, but you should still check if they extend into a network along the grooves or seams, as this can affect drainage and traction, especially on wet roads during rainy days. In short, don’t cut corners to save money—regular tire inspections are a good habit. If you spot suspicious cracks, it’s best to consult a professional or replace the tire outright to protect yourself and others.
