Tyre Markings

205 – Section Width

This identifies the section width of the tyre, which is the measurement of the tyre sidewall in millimeters - from where it touches the rim to where the tread begins.

1 inch = 25.4 millimeters

55 – Aspect Ratio

The aspect ratio of a tyre is measured in percentage and indicates the tyre's section height with respect to the section width. For example, an aspect ratio of 55 means that the tyre's section height is 55% of the tyre's section width.

R - Construction

This indicates the construction used within the tyre’s casing. R stands for radial construction. B for belted bias also called cross ply.

16 – Rim diameter

Indicates diameter of the wheel rim, which is most often measured in inches.

91 - Load index

The load index tells you how much weight the tyre can support when properly inflated. Load indices range from 75 to 105 for passenger tyres, with each numeric value corresponding to a tyre’s carrying capacity in KPA (kilo pascal) or 25 to 40 in PSI (pounds per square inch)

W - Speed rating

Speed ratings are represented by alphabets ranging from A to Z. Each alphabet coincides to the maximum speed a tyre can sustain under its recommended load capacity. For instance, S is equivalent to a maximum speed of 180 km/h, W indicates a speed threshold of 270 km/h. Even though a tyre is designed to perform at these speeds, it is advisable to not exceed legal speed limits.

Speed Rating
Chart
Rating N P Q R S T H V W Y
Km/Hr 140 150 160 170 180 190 210 240 270 300
Mud and Snow Tyre

M+S
Ensures performance in mud, sand and fresh or melting snow. However for winter circumstances we advise tyres with a "three peak snowflake" symbol.
 

Three peak snowflake

Snowflake
The symbol for a true winter tyre. Tyres marked with this symbol meet the requirements of special winter tests.