We can know the tire size, type tubles or not, the rate of speed, maximum carrying capacity and more tire information that we use. Below will explain the meaning of the row number.
Take for example P215/65R15 89H. Let's look at one-one:
Q: For passenger vehicles (passenger)
215: This symbol indicates the tire width is measured from one wall to another. That is, it determines the number of millimeters of tread. The bigger the number, the tire treads will look more broadly.
65: The ratio of height to width. The larger the numbers side of the tire will look higher. The smaller the number the lower the tire wall.
R: Construction of tires. The symbol R represents radial tire type.
15: The diameter of the tire, or better known by the ring 15. Usually correspond to the diameter (ring) wheels.
89: Index Power. Each figure has a different level haulage. It is also associated with the maximum wind pressure of n measured in units of PSI (pounds per square inch) and Kpa (kilopascals).
H: The rate of speed. Each letter has a different speed levels. The rate at which it covers:
- Q a maximum speed of 158 km / h
- S a maximum speed of 179 km / h
- T a maximum speed of 188 km / h
- U a maximum speed of 198 km / h
- H a maximum speed of 208 km / h
- V maximum speed of 240 km / h
- Z maximum speed above 240 km / h
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