Michelin Pilot Sport 4 255/55 R20

Michelin Pilot Sport 4 is a summer tyre made in total of 185 sizes, ranging from R16 to R16 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 255/55 R20 is 50mm wider than the narrowest dimension (205) and 70mm narrower than the widest one (325). This tyre profile of 55 means the sidewall height of the tyre is 55% of the tyre width (255mm), which results in 140.25mm sidewall height. In 255/55 R20, Pilot Sport 4 usually competes against P ZERO PZ4, which is a tyre from Pirelli with a rating of 89%, compared to 0% of the Michelin in question.