Michelin Pilot Sport 4 S is a summer tyre made in total of 250 sizes, ranging from R13 to R13 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (215mm), which results in 86mm sidewall height. In
215/40 R18, Pilot Sport 4 S usually competes against
Ventus Evo, which is a tyre from
Hankook with a rating of 99%, compared to 96% of the
Michelin in question.