Michelin Xzl 365/80 R20

Michelin Xzl is a summer tyre made in total of 7 sizes, ranging from R13 to R13 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 365/80 R20 is 110mm wider than the narrowest dimension (255) and 80mm narrower than the widest one (445). This tyre profile of 80 means the sidewall height of the tyre is 80% of the tyre width (365mm), which results in 292mm sidewall height.