Goodyear Eagle Sport All Season 285/40 R20

Goodyear Eagle Sport All Season is a summer tyre made in total of 11 sizes, ranging from R18 to R18 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 285/40 R20 is 60mm wider than the narrowest dimension (225) and 0mm narrower than the widest one (285). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (285mm), which results in 114mm sidewall height.