Tire Ratings

Buying a car doesn’t only mean knowing how well and far you should drive it, or how shiny and clean it should be. Buying a car also means that you have to know exactly how to take care of it. One means to take care of your car is through the use of the right wheels that will not only make you drive smoothly, but ensure your safety both on and off the road. In order to buy the best tires and know which tires will suit your needs and budget, you also need to be well versed with tire ratings.

There are actually many different ratings associated with tires, and all of them depend on a tire’s design, even on the tire manufacturer. If you live in the United States, you may notice that your tire is given different numerical or alphabetical ratings, and that the words “minimum federal regulations” are often bandied about. However, the three major ratings that tires receive are not courtesy of the U.S. government, but are made by the people who make the tires for you.

The three major ratings signify the anticipated degree of tread wear, temperature resistance, and traction. The test that each tire undergoes is carried out by individual tire manufacturers, and there is no universal ratings system that governs all tires. Therefore, you can only compare tires within brands, but you cannot compare tires across brands.

Tread wear is the rating of the ability of the tire to resist wear and tear. Each manufacturer has a basic tire that is labeled as 100; if you find a tire that has a rating of 300, it means that the 300-rated tire is designed to last three times longer than the 100-rated tire. Each tire manufacturer has his or her own standards for rating the tread wear of tires, and the basic 100-rated tire differs from one manufacturer to another.

In general, however, you can rest assured that tires rated 300 to 400 for tread wear are satisfactory, while those that receive a 500 to 700 rating are very good, although they can often be expensive. Again, because the basic 100-rated tire differs amongst tire manufacturers, you cannot conclude that a 300-rated tire from one brand is better than a 200-rated tire from another. Moreover, despite popular opinion, the numbers do not translate into miles that the car can go before its tires wear out completely.

The traction grade of your tire is a rating of its ability to respond to the brakes and stop immediately while you are moving on wet pavement. If you study your tires carefully, you will notice that they have grooves that sometimes come in creative designs. These grooves are not only for show: they serve to draw water away from your tire, so that your tire maintains a firm hold on whatever surface it rolls your car on.

There are currently three traction ratings. The AA grade is relatively new, and it designates an excellent wheel that responds immediately to the brakes without gliding farther on. Down the line are the A, B, and C-rated tires. A C-rated tire designates a tire that meets minimum federal standards for traction.

The third major rating accorded to tires is the temperature grade, or temperature resistance. While rolling on the road, your tire will generate large amounts of heat: this heat comes from its constant motion, its friction against the road, even the surrounding temperature of the wheel and the car. This heat can also damage your wheels, hence the smell of burnt rubber that often comes from old trucks or cars that have been on harsh, unforgiving roads for too long.

The higher the temperature grade for your tire, the more it can resist heat. Like the traction grades, temperature ratings come in letters. A tire rated A for temperature resistance is a top-of-the-line tire that will not melt or deform even when encountering large amounts of heat. A C-rated tire for temperature will meet minimum federal requirements for tires.

If you are buying tires, make sure that you buy the newest, freshest ones. To look at your tire’s manufacturing date, look at the serial number on its sidewall. The last three digits of the serial number signify the date of the tire’s creation. For instance, if you see the numbers 509, this means that the tire was made in the fiftieth week of 1999.

For more information on tire ratings, visit the United States Department of Transportation, or DOT, at http://www.nhtsa.dot.gov/cars/testing/UTQG. You will find comparative charts and more information on tire ratings at the “Uniform Tire Quality Grading” page. Be well versed with these terms when buying your tires, and you can assure yourself a safe and smooth ride. Buying a car doesn’t only mean knowing how well and far you should drive it, or how shiny and clean it should be. Buying a car also means that you have to know exactly how to take care of it. One means to take care of your car is through the use of the right wheels that will not only make you drive smoothly, but ensure your safety both on and off the road. In order to buy the best tires and know which tires will suit your needs and budget, you also need to be well versed with tire ratings.

There are actually many different ratings associated with tires, and all of them depend on a tire’s design, even on the tire manufacturer. If you live in the United States, you may notice that your tire is given different numerical or alphabetical ratings, and that the words “minimum federal regulations” are often bandied about. However, the three major ratings that tires receive are not courtesy of the U.S. government, but are made by the people who make the tires for you.

The three major ratings signify the anticipated degree of tread wear, temperature resistance, and traction. The test that each tire undergoes is carried out by individual tire manufacturers, and there is no universal ratings system that governs all tires. Therefore, you can only compare tires within brands, but you cannot compare tires across brands.

Tread wear is the rating of the ability of the tire to resist wear and tear. Each manufacturer has a basic tire that is labeled as 100; if you find a tire that has a rating of 300, it means that the 300-rated tire is designed to last three times longer than the 100-rated tire. Each tire manufacturer has his or her own standards for rating the tread wear of tires, and the basic 100-rated tire differs from one manufacturer to another.

In general, however, you can rest assured that tires rated 300 to 400 for tread wear are satisfactory, while those that receive a 500 to 700 rating are very good, although they can often be expensive. Again, because the basic 100-rated tire differs amongst tire manufacturers, you cannot conclude that a 300-rated tire from one brand is better than a 200-rated tire from another. Moreover, despite popular opinion, the numbers do not translate into miles that the car can go before its tires wear out completely.

The traction grade of your tire is a rating of its ability to respond to the brakes and stop immediately while you are moving on wet pavement. If you study your tires carefully, you will notice that they have grooves that sometimes come in creative designs. These grooves are not only for show: they serve to draw water away from your tire, so that your tire maintains a firm hold on whatever surface it rolls your car on.

There are currently three traction ratings. The AA grade is relatively new, and it designates an excellent wheel that responds immediately to the brakes without gliding farther on. Down the line are the A, B, and C-rated tires. A C-rated tire designates a tire that meets minimum federal standards for traction.

The third major rating accorded to tires is the temperature grade, or temperature resistance. While rolling on the road, your tire will generate large amounts of heat: this heat comes from its constant motion, its friction against the road, even the surrounding temperature of the wheel and the car. This heat can also damage your wheels, hence the smell of burnt rubber that often comes from old trucks or cars that have been on harsh, unforgiving roads for too long.

The higher the temperature grade for your tire, the more it can resist heat. Like the traction grades, temperature ratings come in letters. A tire rated A for temperature resistance is a top-of-the-line tire that will not melt or deform even when encountering large amounts of heat. A C-rated tire for temperature will meet minimum federal requirements for tires.

If you are buying tires, make sure that you buy the newest, freshest ones. To look at your tire’s manufacturing date, look at the serial number on its sidewall. The last three digits of the serial number signify the date of the tire’s creation. For instance, if you see the numbers 509, this means that the tire was made in the fiftieth week of 1999.

For more information on tire ratings, visit the United States Department of Transportation, or DOT, at http://www.nhtsa.dot.gov/cars/testing/UTQG. You will find comparative charts and more information on tire ratings at the Uniform Tire Quality Grading” page. Be well versed with these terms when buying your tires, and you can assure yourself a safe and smooth ride.

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