Pirelli Cinturato P7 is a summer tyre made in total of 220 sizes, ranging from R15 to R15 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 275/40 R18 is 70mm wider than the narrowest dimension (205) and -80mm narrower than the widest one (195). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (275mm), which results in 110mm sidewall height. In
275/40 R18, Cinturato P7 usually competes against
PremiumContact 6, which is a tyre from
Continental with a rating of 71%, compared to 70% of the
Pirelli in question.