Hankook Winter I-Cept iOn X 255/40 R22

Hankook Winter I-Cept iOn X is a winter tyre made in total of 41 sizes, ranging from R17 to R17 - this particular dimension is R22, which means it fits to a 22 inch/558.8mm diameter wheel. 255/40 R22 is 40mm wider than the narrowest dimension (215) and 40mm narrower than the widest one (295). 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.