Michelin Pilot Sport 5 is a summer tyre made in total of 70 sizes, ranging from R16 to R16 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 235/40 R18 is 40mm wider than the narrowest dimension (195) and 40mm narrower than the widest one (275). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (235mm), which results in 94mm sidewall height. In
235/40 R18, Pilot Sport 5 usually competes against
Eagle F1 Asymmetric 6, which is a tyre from
Goodyear with a rating of 92%, compared to 95% of the
Michelin in question.