Pirelli P Zero (PZ5) 265/40 R23

Pirelli P Zero (PZ5) is a summer tyre made in total of 76 sizes, ranging from R13 to R13 - this particular dimension is R23, which means it fits to a 23 inch/584.2mm diameter wheel. 265/40 R23 is 40mm wider than the narrowest dimension (225) and 60mm narrower than the widest one (325). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (265mm), which results in 106mm sidewall height.