Knowing how to read the information printed on the sidewall of your tyres is a crucial undertaking, as it enables you to correctly order the right tyre for your car.
If you look closely at the writing on the sidewall you’ll see the something similar to P205/65 R1 5 94V.
Width (205)
The first number refers to the tyres section width in millimeters, which is measured from the bottom of the tread to the rim (sidewall to sidewall).
Profile (65)
After the forward slash, the next number is refering to the height of the sidewall, which is also known as the Aspect Ratio as it is a percentage of the section width.
For example, the height of this tyre is 65% of of the tyres width (205mm).
Low profile tyres mean there is a smaller aspect ratio percentage.
Tyre Construction (R)
Indicates that the tyre has Radial tyre construction, which essentially refers to the way it has been constructed.
Almost all passenger tyres are radial tyres.
Rim Size (15)
Indicates the diameter (size in inches) of the wheels rim, which is helpful when you are purchasing rims for existing tyres.
Speed Rating (94v)
The final symbol represents the maximum load capacity and speed rating at which it’s safe to use the tyre, subject to correctly fitted tyres, sound condition and appropriate tyre inflation pressure.
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