What is a good tire grade?
Most ultra-high-performance tires achieve the best grade: AA. Most car tires get the next best grade of A; less than 22 percent of the tires have a B grade; and only one tire (out of more than 2,400 models) has the honor of a C grade.
Are there different grades of tires?
A tire graded “A” is the highest, “B” is average and “C” the lowest. The “C” grade represents the minimum performance standard required by federal regulation. Currently, 27 percent of tires are rated “A,” 59 percent are rated “B” and 14 percent are rated “C.”
What does 500 AA stand for on a tire?
This rating is based off a 100-tread wear control tire. 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.
How do you read tire quality grade?
The Course Monitoring Tire is assigned a grade and the test tire receives a grade indicating its relative treadwear. A grade of 100 would indicate that the tire tread would last as long as the test tire, 200 would indicate the tread would last twice as long, 300 would indicate three times as long, etc.
What does 400 AA mean on a tire?
tread wear
The 400 is tread wear which represents the tire’s comparative wear when measured against the governments mandated tire, which is rated at 100. So the tire rated at 400 would wear four times longer than the government’s mandated tire.
What does 600 AA mean on tires?
That said, the most accurate indicator for how many miles a tire will last may be its mileage warranty. Unlike a treadwear grade, a warranty is the manufacturer putting their money where their mouth is. A tire rated 600 AA with a 70,000 mile warranty is quite likely to live up to it.
How many miles is a 400 treadwear rating?
For example: One tiremaker’s 400 treadwear grade earns only a 40,000-mile warranty, while another’s 400-level tire carries a 60,000-mile warranty.
What tire has the smoothest ride?
Producing tires for many types of vehicles, Michelin may be best known for manufacturing some of the smoothest and quietest riding all-season and touring tires available on the market. Two of the best that were designed specifically for a smooth and quiet ride, good…
What does the UTQG rating on a tire mean?
The UTQG (Uniform Tire Quality Grade) treadwear rating, also known as a treadwear grade, is a number stamped on the tire sidewall that relates to expected tire life. In basic terms, and in the spirit of the concept, the higher the UTQG treadwear rating, the greater the tire life.
What is the ply rating for a tyre?
A tire ply rating is an expression of the tire’s strength and capacity . The ply rating translates in a very direct way to tire capabilities and limitations, especially when it comes to inflation and load capacity.
What is uniform tire grading system?
Uniform Tire Quality Grading, commonly abbreviated as UTQG, is the term encompassing a set of standards for passenger car tires that measures a tire’s treadwear, temperature resistance and traction. The UTQG was created by the National Highway Traffic Safety Administration in 1978, a branch of the United States Department of Transportation (DOT).
What is tire temperature rating?
Tire temperature rating grades a correctly inflated tire’s ability to resist and properly disperse heat. A tire temperature grade ranges from A to C, with C being the lowest possible score under federal regulations. A tire assigned with an A score means it runs the coolest while one graded C runs the hottest.