Hankook Winter i*cept evo2 W320B is a winter tyre made in total of 22 sizes, ranging from R16 to R16 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 205/55 R17 is 10mm wider than the narrowest dimension (195) and 50mm narrower than the widest one (255). This tyre profile of 55 means the sidewall height of the tyre is 55% of the tyre width (205mm), which results in 112.75mm sidewall height. In 205/55 R17, there is only one possible speed index for Hankook Winter i*cept evo2 W320B - "H", which is good for speeds up to 210 km/h.