Pirelli P ZERO Rosso 295/30 R18

Pirelli P ZERO Rosso is a summer tyre made in total of 45 sizes, ranging from R16 to R16 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 295/30 R18 is 90mm wider than the narrowest dimension (205) and 0mm narrower than the widest one (295). This tyre profile of 30 means the sidewall height of the tyre is 30% of the tyre width (295mm), which results in 88.5mm sidewall height.