Tyres - dimensions

The car's wheels, tyres and rims have a certain dimension, see the examples in the table below.

The dimensions are stated on all car tyres. Example of designation:215/55R16 97W.

205Tyre width (mm)
50Ratio between tyre wall height and tyre width (%)
RRadial ply
17Rim diameter in inches (")
93Codes for the maximum permitted tyre load, load index (LI)
WSpeed rating for maximum permitted speed, speed rating (SS). (In this case 270 km/h).