UTQG Ratings Explained: Treadwear, Traction & Temperature

What Those Numbers On Your Tire Actually Mean

Flip through the sidewall of just about any tire and you'll spot a string of letters and numbers that don't mean much at first glance. Something like "Treadwear 400 Traction AA Temperature A" is printed right there, and most people drive past it for years without knowing what it's telling them.

That's the Uniform Tire Quality Grading system, or UTQG, and it's one of the easiest ways to compare tires before you buy.

The rating breaks down into three parts: treadwear, traction, and temperature. Each one tells you something different, and once you know how to read them, comparing two tires side by side gets a lot simpler.

A Shared Scale For Every Tire On The Shelf

Every manufacturer runs their own testing, so without a shared standard, comparing a tire from one brand to another would be next to impossible. UTQG gives every tire a common scale, so a treadwear number or traction grade means the same thing no matter whose name is on it.

Worth knowing: these tests are self-graded by the manufacturer using standardized methods, not an independent third party. That doesn't make the numbers useless, it just means they're most reliable when comparing tires within the same brand, or as a general baseline while cross-shopping.

Treadwear: How Long Should This Tire Last

Treadwear is usually the biggest number on the sidewall, and it's a comparative score against a baseline tire set at 100. A tire rated 400 is graded to wear about four times longer than that baseline under the same test conditions. Higher numbers generally mean a longer-lasting tire, while lower numbers usually show up on tires built for grip over mileage.

That's the tradeoff. Softer compounds grip better but wear faster, pulling the treadwear number down. Harder compounds go the distance but can give up a little grip in return. Neither is wrong, it depends on what you need the tire to do.

Traction And Temperature: Grip And Heat Resistance

Traction grading measures wet stopping performance in straight-line braking. The grades run AA, A, B, and C, with AA representing the best wet traction and C the minimum standard to be sold at all. This grade matters most if you're driving somewhere that sees regular rain, since it's testing wet grip specifically.

Temperature grading measures how well a tire resists heat buildup at sustained highway speeds, graded A, B, or C, with A representing the best resistance. Heat is one of the biggest factors in tire failure on long summer drives, so a stronger temperature grade means a tire built to handle sustained speed without breaking down.

Making It Easy To Shop With Confidence

Reading the ratings is one piece of the puzzle. Finding the right tire is the other. At Only Tires, every set comes with guaranteed fitment when you shop by your vehicle's year, make, and model, plus free mounting, balancing, and shipping on every order.

Financing is available too, through Affirm at rates as low as 0% APR, through Katapult starting at $1 down with no credit score required, and through PayPal. Any of these options makes it easier to get a tire that matches your treadwear, traction, and temperature needs instead of settling for whatever fits the budget that day.