Tyres - dimensions

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

Dimensions are stated on all car tyres. Example of designation: 235/60 R18 103 V.

235Tyre width (mm)
60Ratio between tyre wall height and tyre width (%)
RRadial ply
18Rim diameter in inches
103Codes for the maximum permitted tyre load, tyre load index (LI)
VSpeed rating for maximum permitted speed, speed rating (SS). (In this case 240 km/h (149 mph).)

The car has an approval for the complete vehicle with certain combinations of wheel rims and tyres.