Is it necessary to replace a tire with sidewall damage?
3 Answers
If only the surface rubber is scratched, replacement is not necessary. However, if the damage is deep and has affected the internal structure, then replacement is required. Classification of car tires: 1. Pneumatic tires: Robert Thomson proposed using compressed air in elastic bags to mitigate vibrations and shocks during movement. Based on this principle, John Dunlop created rubber hollow tires in 1888, and later Thomas manufactured rubber hollow tires with valve switches. 2. Solid tires: Solid tires are the opposite of pneumatic tires (hollow tires). They have a solid body, do not use cords as a skeleton, do not require inflation, and thus do not need inner tubes or airtight layers. The earliest tires were solid tires. Currently, solid tires are only used for slow-moving, high-load vehicles or machinery, as well as machinery in fixed positions.
I always prioritize safety when driving, especially regarding tire issues. Sidewall damage is no trivial matter. The sidewall is the weakest part of a tire, with a complex structure that’s prone to damage—even minor scratches can penetrate internally, compromising the tire’s strength. When driving over potholes or at high speeds, damaged areas may bulge or even burst, directly endangering life. I once experienced this myself, thinking a small scratch was harmless, only to nearly have an accident on the highway. Since then, whenever I notice similar damage, I immediately visit a professional repair shop for inspection. The decision to replace depends on the depth of the damage: if the scratch is deep enough to expose the cords or you can feel bulges, a new tire is a must. Also, monitor tire pressure changes and seasonal effects, as summer heat increases risks. Preventive measures include avoiding curbs when parking and conducting regular self-checks. Don’t skimp on this—safety is priceless.
It depends on the situation. If it's a minor surface scratch with no air leakage and the tire structure remains intact, you might consider monitoring it for short-distance driving. However, the key is to inspect carefully: feel the depth of the scratch with your hand. If it exceeds 2-3mm or shows cracks, don't take the risk. From a cost-saving perspective, replacing a tire costs a few hundred yuan, but a blowout could lead to higher repair costs and potential wheel damage. I regularly check my tires to ensure no abnormal vibrations or pressure issues. If you frequently drive on highways or carry heavy loads, extra caution is advised; scratches may cause continuous damage to the sidewall, shortening the tire's lifespan. A simple test: apply soapy water to the scratched area—bubbles indicate air leakage. In short, weigh the risks and costs, but prioritize safety and consider replacing the tire first.
