Bridgestone Potenza S005 is a summer tyre made in total of 11 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, Potenza S005 usually competes against
P ZERO PZ4, which is a tyre from
Pirelli with a rating of 89%, compared to 0% of the
Bridgestone in question.
