Pirelli P Zero sp. SUV 275/45 R21

Pirelli P Zero sp. SUV is a summer tyre made in total of 3 sizes, ranging from R21 to R21 - this particular dimension is R21, which means it fits to a 21 inch/533.4mm diameter wheel. 275/45 R21 is 10mm wider than the narrowest dimension (265) and 20mm narrower than the widest one (295). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (275mm), which results in 123.75mm sidewall height.