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What is the Treadwear Index?

2 Answers

VonBeckett

07/24/25 7:25am

Tire treadwear index refers to the wear resistance performance of a tire, which is the tire's wear life rating. Here are specific details about the treadwear index: Definition: Treadwear Index (TREADWEAR) is primarily an indicator that measures the wear performance and service life of a tire tread. If you are unsure about a tire's wear resistance and durability, you can refer to this data. Classification: The treadwear index is divided into three categories. Tires with a treadwear index between 160-300 are classified as summer standard type; those between 160-200 are summer high-performance type; and those between 300-540 are all-season standard type. The higher the value, the more wear-resistant the tire is. For example, a tire with a treadwear index of 520 belongs to the all-season standard type and is highly wear-resistant and durable. However, the treadwear index can only be compared within the same brand and cannot be compared across different brands.

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DeMargaret

08/11/25 3:07am

Treadwear Rating? That number commonly seen on tires mainly refers to the treadwear rating, indicating the tire's durability. The higher the number, the more wear-resistant the tire is; for example, 100 represents standard lifespan, while 200 means it can last twice as long. I always pay special attention to this when choosing tires. Using tires with higher ratings feels more fuel-efficient for long-distance driving and saves money on frequent replacements. From a safety perspective, tires with less wear provide better traction, reducing the risk of skidding in rainy conditions. The UTQG system also includes traction and temperature grades, so it's best to consider all three for a comprehensive evaluation. It's recommended to regularly check tire pressure to ensure even wear—don't just focus on price, as high wear-resistance is more cost-effective in the long run. Daily driving habits also matter; avoiding sudden braking and sharp turns can extend tire life.

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