What does a treadwear rating of 500 mean?

If the tire being tested gets a 500-tread wear rating, that means it's expected to take five times as long to wear out as the control tire. The tread wear grade designation is defined when the tire is run a 640 kilometer course for 11,520 km, with tread depths being measured every 1,280 to give a projected tread life.

Accordingly, what is a good treadwear rating?

In basic terms, and in the spirit of the concept, the higher the UTQG treadwear rating, the greater the tire life. A tire with a "600" treadwear rating is forecasted to last twice as long as a tire with a "300" rating, and should accumulate three times the mileage of a "200" rated tire.

Also, what does the treadwear number mean? Treadwear grades are an indication of a tire's relative wear rate. The higher the treadwear number is, the longer it should take for the tread to wear down. A control tire is assigned a grade of 100. For example, a tire grade of 200 should wear twice as long as the control tire.

Keeping this in view, what does 500 AA stand for on a tire?

Over 500= about 80,000 miles. 5. Traction – The traction grades, from highest to lowest, are AA, A, B, C. This rating represents the tires ability to stop on wet pavement as measured under controlled conditions.

Is 480 treadwear good?

The bottom line on the treadwear ratings is that they are relative to the other tires a particular manufacturer makes. So a 480 in Goodyear's line is different than a 480 in Pirelli's line. Or Kuhmo's line. But generally when you hit the 400's and above, you're into pretty durable tires.

36 Related Question Answers Found

What does UTQG 400 AA mean?

Uniform Tire Quality Grading

How long will 200 treadwear last?

A tire rated at 200 has a projected tread life of 60,000 miles.

How many miles is a 400 treadwear rating?

The first portion of the rating is a 2 – or 3-digit number that represents relative treadwear, or how long the tire's tread is expected to last against the standard test tire. The test track they use is a 400-mile loop for a total of 7,200 miles. If a tire is rated 100, it is expected to last as long as the test tire.

What does UTQG 500 AA A mean?

The UTQG rating system originated in the US as a way to help consumers make more informed tire-buying decisions. Tire manufacturers give their own tires a grade for treadwear, traction and temperature. Together, these numbers makes up a tire's UTQG rating—a three-digit number plus two letters. For example, 500 A A.

What does UTQG 720 AA mean?

A UTQG rating is made up of a three-digit number and two letters or letter groups. For example, a tire might have a 720 A A rating. The first letter or group of letters is the traction rating. The best grade is AA, followed by A, B and C. The better the grade, the better the tire will stop in wet conditions.

What tire has the highest treadwear rating?

Treadwear Findings

Michelin was a standout in our latest tests. The three Michelin models we rated all met or exceeded their mileage warranty. But the longest-wearing tire came from Pirelli. We estimate that the Pirelli P4 FOUR SEASONS Plus could last a whopping 100,000 miles.

Do more expensive tires last longer?

It's no surprise that the more expensive tires generally stop better when brand new. In some cases though, it's not by much. Additionally, there are instances when a less expensive tire out performs a more expensive set of rubber, such as the Nexen CP671 when compared to the Goodyear Eagles fitted on the Toyota Camry.

What does a 300 treadwear rating mean?

Treadwear grade

A government-required number that indicates a tire's expected wear. A grade of 300 denotes a tire that will wear three times as well as a tire graded 100. But the numbers are assigned by tire manufacturers, not an independent third party.

What does Traction AA mean on tires?

Traction grades represent the tire's ability to stop on wet pavement as measured under controlled conditions on asphalt and concrete test surfaces. As of 1997, the traction grades from highest to lowest are “AA”,”A”,”B” and “C”. The grades do not take into consideration the cornering or turning performance of a tire.

What does H mean on a tire?

An "H" speed rating signifies that this tire can be run safely at speeds of up to 130 mph for extended periods. *The "Z" rating used to be the highest rating for tires having a maximum speed capability greater than 149 mph.

Does tire speed rating matter?

Tire Speed Rating and Why It Matters. Each letter in the speed rating represents a maximum speed based on a standard chart. The main things to know: Generally, the higher in the alphabet a tire is rated, the better it will manage heat and faster speeds.

What is load index on a tire?

The tire load index lets you know the load carrying capacity of a tire. For example, if a tire has a load index of 92, it can support 1,389 pounds at maximum air pressure. Multiply that by four tires (4 x 1,389 = 5,556 pounds) to get your car's maximum load carrying capacity.

What are the 3 UTQG rating?

The UTQG rating is made up of three components, treadwear, traction and temperature.

How often should tires be rotated?

6,000 to 8,000 miles

What does the speed rating of a tire mean?

A tire's speed rating indicates the optimal speed that the tire can safely maintain over time. The speed rating system was developed to help control the safe performance of tires at standardized speeds. A tire's certified speed rating is given a letter from A to Z, ranging from 5km/h (3mph) to above 300 km/h (186 mph).

How do you read a tire?

Tire Size Markings

P = Passenger Car Tire. The first letter on a tire indicates the tire's class.
245 = Section Width. Tread (mm)
45 = Aspect Ratio. (Ratio of Sidewall height to width)
Z = Speed Rating. S = 112mph.
R = Radial. Construction.
19 = Wheel. Diameter.
98 = Load. Index.
W = Speed. Rating.

How long do car tires last?

How Long Should a New Set of Tires Last? It may be tentative, but tires do have an expiration date. There is a general consensus that most tires should be inspected, if not replaced, at about six years and should be absolutely be swapped out after 10 years, regardless of how much tread they have left.