Hankook Winter i*cept evo3 X W330A is a winter tyre made in total of 74 sizes, ranging from R17 to R17 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 245/60 R18 is 30mm wider than the narrowest dimension (215) and 70mm narrower than the widest one (315). This tyre profile of 60 means the sidewall height of the tyre is 60% of the tyre width (245mm), which results in 147mm sidewall height. In 245/60 R18, there is only one possible speed index for Hankook Winter i*cept evo3 X W330A - "H", which is good for speeds up to 210 km/h.