Hankook ION FlexClimate 255/40 R20

Hankook ION FlexClimate is a allround tyre made in total of 27 sizes, ranging from R17 to R17 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 255/40 R20 is 40mm wider than the narrowest dimension (215) and 0mm narrower than the widest one (255). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (255mm), which results in 102mm sidewall height.