Should I Replace the Tire if It Has Scratches?

[StGideon]

If only the surface rubber is scratched, replacement is not necessary. However, if the scratch is deep, the tire should be replaced. Shape: A tire is a circular elastic rubber product mounted on various vehicles or machinery to roll on the ground. Tires are usually installed on metal rims to support the vehicle body, absorb external shocks, ensure contact with the road surface, and maintain driving performance. Performance: Tires are often used under complex and harsh conditions. During driving, they endure various deformations, loads, forces, and high or low temperatures. Therefore, they must have high load-bearing capacity, traction performance, and shock absorption. Additionally, they require high wear resistance, flexibility, and low rolling resistance and heat generation. Half of the world's rubber consumption is used for tire production, highlighting the significant demand for rubber in tire manufacturing. Specifications: Specifications are the geometric parameters and physical performance indicators of a tire. Tire specifications are usually represented by a set of numbers, where the first number indicates the tire section width, and the second number indicates the rim diameter, both measured in inches.

[VanGarrett]

Whether a tire with scratches needs to be replaced depends mainly on the depth and location of the scratches. Superficial scratches, like those from a fingernail on the surface, may only remove a bit of rubber without affecting the tire's strength, so replacement isn't necessary. However, deep scratches that reach the bottom of the tread or the sidewall, especially if the internal fiber layer is visible, must not be taken lightly—they can lead to a blowout while driving, particularly at high speeds or during sharp turns. I recommend using a coin or ruler to measure the depth of the scratch—if it exceeds 5 millimeters, it's time for a replacement. Regularly checking tire pressure and appearance during driving can extend tire lifespan, saving you from frequent replacements. Safety comes first; don't risk it to save a few hundred bucks. It's best to have a professional technician inspect it at a specialized shop—they can accurately determine whether repair or replacement is needed using magnifying tools and equipment.

[SanCharles]

When it comes to tire scratches, I've encountered them several times myself, and I believe it depends on the actual situation. Once, while driving on the road, the sidewall of my tire got deeply scratched by a roadside rock. At first, I didn't pay much attention to it, but during a long-distance trip, I felt severe bumps, which scared me. I immediately replaced the tire to avoid an accident. Now, I habitually check my tires every week: I feel the scratched area with my hand. If it's a minor scratch and doesn't affect driving, I continue using it. But if the scratch is on the sidewall or shows signs of bulging, I go straight to the shop for a replacement. Deep scratches can easily allow water and dirt to enter, corroding the internal structure and accelerating aging over time. Don't just focus on saving money—safety is more important. Regularly rotating the tires or maintaining proper tire pressure can also help reduce such issues.

[StGage]

When I inspect tire scratches, I first observe their size. A small, shallow scratch might be from a branch or parking scrape—no need to replace the tire, and it can still be driven as usual. However, if the scratch is deep or near the sidewall (a weaker area prone to ruptures), replacing the tire is necessary for peace of mind. I recall driving once in heavy rain with a cracked tire, which nearly caused a skid and loss of control. Since then, I’ve been very cautious about this issue. My advice: perform a simple check by gently running a key over the scratch to gauge its depth. If unsure, visit a repair shop—experienced professionals can assess it instantly. The bottom line for safe driving is intact tires; don’t risk major consequences over minor neglect.