tire tread wear rating
Since treadwear is so important when looking at the quality of tires the National Highway Traffic Safety Administration NHTSA in the US established the idea of a Uniform Tire Quality Grade UTQG. Department of Transportation recommends replacing tires when they reach 232 and many states legally require tires to be.
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By that same rule of thumb the harder a tires rubber compound is the longer it will last.
. For example H is between U and V with the common perception that H stood for high performance at one time. Treadwear grades are ratings that say how long a tire should wear. A high number shows that the tire is likely to last long.
Department of Transportation to determine how a quickly a tire wears compared to a standard reference tire which is graded at 100. A treadwear grade of 500 for example should last twice as long as a tire with a treadwear grade of 250. The higher the number the longer the tire should last.
If the grade is high it means that the tire will last long. THE ORIGIN OF SPEED RATINGS. Treadwear tests take place in controlled environments.
If the depth is 432 you should start thinking of replacing your tires and getting new ones. A tire tread with a treadwear rating of 453 can last almost four times longer than a tire tread with a treadwear rating of 100. Needless to say this is a lower-middle-level treadwear rating that should serve you for about 4 years.
We can thank Germanys famous Autobahn for tire speed ratings. The rating applies to passenger car tires sold in the United States but it is not required for deep treaded light truck tires wintersnow tires temporary spare tires trailer tires tires under 12 in diameter and other select tires. 832 useable tread depth -432 measured tread depth worn away 432 of remaining tread depth 50 of 832 A tire that starts with 1032 of original tread depth has 125.
This means that another tire with a rating of 200 will be twice as durable as the tire with a rating of 100. What Does a Tire Tread of 453 Mean. When someone refers to a treadwear rating or treadwear grade this UTQG is what theyre talking about.
A tire with a treadwear rating of 320 should serve you for at least 40000 miles. The existing UTGQ ratings available to help you assess treadwear include. Order Today And Get Free Shipping On All Tires - Delivered To Your Doorstep Within Days.
The higher the treadwear number is the longer it should take for the tread to wear down. Most states also require tires to have a tread depth of at least 116 inch before they can pass inspection. What does the tire rating mean.
What Is A Good Treadwear Number Grade. So a tread-wear rating of 200 should give you twice the life of a tire rated at 100. Treadwear grades as seen on the side of the tire indicate the time a tire will take to wear down.
If a tires treadwear rating is 300 that means it should last about three times as long as a standard tire. The standard tire has a rating of 100. The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified government test course.
Ad Understanding UTQG Standards. As a rule of thumb the softer a tires rubber compound is the grippier it is. A grade of 300 denotes a tire that will wear three times as well as a tire graded 100.
A government-required number that indicates a tires expected wear. Tires shouldnt be used under any conditions once the tread depth reaches 116 inch and should be replaced immediately. Up to 6 cash back What Is The Tread Depth Of A Tire.
And the opposite is true. But what is this treadwear grade thing. The Treadwear Rating is a relative number based on how the tire to be rated wears compared to a baseline tire always rated at 100.
The treadwear rating relates to the tires expected treadwear traction and temperature capabilities. Ad Premium Tires for Cars Trucks SUVs from the Biggest Names in the Industry. A good treadwear number is more than 500 the best being 600.
For example the useful tread on a tire graded 400 should last twice as long as a tire graded 200. Tire speed ratings range from A the lowest to Y the highest. Learn More at Tire Rack.
The amount of tire tread can affect your stopping distance making a drive in wet or snowy. But the chart is not completely in alphabetical order. THE PENNY TEST.
A tire rated at 400 should last four times as long. The tire tread depth gauge measures in 32nds of an inch. The number is indexed to a baseline of 100.
Treadwear grade is a rating on the tire code that measures a tires durability based on manufacturer tests. Think of it this way. 232 or less means that you should change your tires ASAP.
Learn More at Tire Rack. 1032 original tread depth -232 legally worn out tread depth 832 of useable tread depth. Simply treadwear is a number assigned by a tire manufacture which compares the durability of a particular tire against another tire which it has set as the standard.
Indication of a tires relative wear rate. 70 rows Temperature rating is graded from highest to lowest as A B or C. What is a Tire Treadwear Rating.
As an example if a tire has a rating of 300 and another brand has a rating of 600 the tire with a 600 rating should have. Good tire tread depth will be 632 or deeper. Its called the Uniform Tire Quality Grading Standards UTQGS PDF 451 MB and the tire ratings are on the sidewall of every passenger vehicle tire sold in the United States.
For example a tire graded 150 would under one and a half l 12 times as well on the government course as a tire graded 100. In the United States tire tread depth is measured in 32nds of an inch. A treadwear grade is a number from 0 to 500 that indicates the expected wear rate of the tire when compared with other tires in laboratory testing.
The treadwear quality code is used specifically for consumers to compare brands for the useful life of the tire. A treadwear rating generally in the form of a three-digit number preceding the abbreviation TW is essentially a rough approximation of how soft and sticky the rubber of a tire is. The treadwear grade is a comparative rating based on the wear of a tire when tested carefully under controlled conditions.
A control tire is assigned a grade of 100. How it all works. Many tires are rated by the US.
Tread depth is 50 worn. Inspectors measure the tread depth on truck tires at about 15-inch intervals and usually measure more than one tread. A tire rated at 200 should last twice as long as the base tire.
Government on treadwear traction performance and temperature resistance. This rating is required by the US. How are tires rated.
The treadwear codes are based on a rating of 100 to 800 with 100 being the lowest rating and 800 the highest. Ad Save 100s Buying Brand New Tires For Your Vehicle Only At Priority Tire. New tires typically come with 1032 or 1132 tread depths and some truck SUV and winter tires may have deeper tread depths than other models.
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