If you need another set of tires, there is certain information you will need to get the right size. You can find the information on the label of the current tires or look at a tire size chart. That can be easier said than done if you don't know what to look for. If you don't, then you won't know what kind to purchase. This also means you won't know the price range you're looking for. So, what do you do when you don't know?
You can go to the dealer and ask for assistance. They have tire charts with every make, model and style for different vehicles. It's good to know what the letters and numbers mean on the labels so that you can pick the right tire in the future.
Say you have a label that says, “P167/40R 12 79H". If you don't know what that means, you're temporarily a lost cause. The initial letter within the label specifies what kind of vehicle it is: the letter P stands for passenger; LT stands for light truck; and T stands for spare tire or temporary tire.
Width And Ratio
The next set in the label series, 167, refers to the tire's section width. This is measured in millimeters. The lower the number, the shorter the tire is. After the slash, those set of numbers refer to the ratio. This is the percentage of the section width. Depending on the kind of tires they are, the number could be lower.
Tire Type And Load Index
The letter after that represents the type of tire. In the above example, the letter R is for radial. The number after the space is the measurement for the wheel rim diameter. The second number, which has a space preceding it, represents the load index of the tire. It will tell you how much weight a vehicle with four tires can hold up safely, without any problems.
Speed Limit Rating
At the end of the label, there is a letter. This represents the traveling speed amount. The tire should be able to drive safely within this limit. The letter S is used for speed limits up to 112 miles per hour; the letter H is used for speed limits up to 130 miles per hour; the letter V is used for speed limits up to 150 miles per hour. For anything above 150 miles per hour, the letter Z would be used.
It's not advantageous to drive at high speeds because the tires can heat up and this will cause the treads to unravel. The speed ratings advise about the limit you can drive and if it's safe at that speed.
You should make note of the treads, size and find our about warranties for mileage. If you're not sure about any of this, consult with your dealer. Using a tire size chart could be the best thing for you to understand your tire size. You want to get your money's worth out of them. You also want to make sure you're getting the right ones for your vehicle that are safe and dependable
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