When you first see the lettering on the side of a tyre, it may mean ‘gobbledegook’ to you, but the following description will assist you in understanding what you read:

The actual letters tell you the exact specification of the tyre – which means, it tells you all you need to know – as follows: For example, if the tyre reads thus:215/55 R16 94W

Sidewell Marking

Explanation

215

Width of the tyre in millimetres

55

Height of the tyre sidewall as a percentage of the width. In this case 50% of 205mm. Also know as the aspect ratio

R

Radial Construction

16

The diameter of the tyre's inner rim in inches

94

Load Capacity of Tyre (See Load Table). In this case its 670kg

W

Speed Symbol. Indicates the max. speed for the tyre at full load. In this case 168mph

XL

Extra load tyres, for use on vehicles with heavier than standard weights.

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