Pirelli P ZERO lx. is a summer tyre made in total of 113 sizes, ranging from R18 to R18 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 255/40 R20 is 30mm wider than the narrowest dimension (225) and 60mm narrower than the widest one (315). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (255mm), which results in 102mm sidewall height. In
255/40 R20, P ZERO lx. usually competes against
Potenza Sport, which is a tyre from
Bridgestone with a rating of 87%, compared to 0% of the
Pirelli in question.