How to find your suitable tire chains?
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- Issue Time
- Jul 22,2014
Let"s look at the numbers printed on the sidewall of every tyre. Most tyre sizes look like this: 205/70x14
1.The first number, "205", is the width of the tyre tread, in millimetres.
2.The next number
after the "/" character, refers to the profile of the car tyre, printed as a percentage of the width of the tyre tread.
For example, using the tyre details above, the width of the tyre tread is 205 mm and the profile is 70 (70%). Therefore the profile of this particular tyre is 205mm x 70% = 143.5mm.
3. The last number after the "x" character, refers to the diameter of the wheel in inches. So the wheel in our example is 14 inches in diameter.
However, there are some exceptions. The profile of a "standard"
tyre is 80, (ie. 80% of the width of the tread). Some tyres, especially those fitted on older vehicles, don"t display the profile number. So you might have a tyre showing "165x14". If the tyre profile number is not printed on the tyre sidewall, you can assume it is a standard tyre, with the profile number 80.
The other exception is that some tyres have their tread width stated in inches instead of millimetres. But to cause a little confusion, these tyres are printed with either "6.00" or "600" if the tyre tread width is in inches. For example you might have a tyre showing "600x12" or "6.00x12". These both mean the tyre has a tread width of 6 inches, a standard profile (80) and a wheel diameter of 12 inches.
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Note:
If there are two numbers, such as 11.00-20.Please select 11.00 in the first list, then select 20 in the third list.Keep the second list blank!
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