Is a Bulging Tire a Quality Issue?

[Joann]

Not necessarily. There are many reasons for tire bulging, and it is not always caused by tire quality issues. Poor driving habits can also lead to tire bulging, so it is important to regularly inspect the tires during daily driving. Here are the factors that can cause tire bulging: 1. Low aspect ratio: A low aspect ratio means the tire sidewall is thin. Such tires have strong grip and a sporty feel, enhancing vehicle handling. However, the sidewall cushioning area is small, making it prone to cuts from the rim during impacts, which can lead to bulging. 2. Abnormal tire pressure: When tire pressure is too high, the tire becomes stiff, and the cord layers can easily break upon hitting hard objects. When tire pressure is too low, the tire flattens, and the rim can shear the sidewall, also causing cord layer breaks. 3. Impact with hard objects: During driving, if the tire collides with a hard object, the strong impact can cause severe compression, increasing internal air pressure and leading to bulging on the thinner side. 4. Expired warranty: Tires have a warranty period, typically 3-5 years. After expiration, bulging is more likely to occur during use.