Pirelli P ZERO sp. 335/30 R20

Pirelli P ZERO sp. is a summer tyre made in total of 5 sizes, ranging from R19 to R19 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 335/30 R20 is 50mm wider than the narrowest dimension (285) and -60mm narrower than the widest one (275). This tyre profile of 30 means the sidewall height of the tyre is 30% of the tyre width (335mm), which results in 100.5mm sidewall height.