Hankook H750 Kinergy 4S2 is a allround tyre made in total of 42 sizes, ranging from R14 to R14 - this particular dimension is R16, which means it fits to a 16 inch/406.4mm diameter wheel. 215/55 R16 is 50mm wider than the narrowest dimension (165) and 40mm narrower than the widest one (255). This tyre profile of 55 means the sidewall height of the tyre is 55% of the tyre width (215mm), which results in 118.25mm sidewall height. In 215/55 R16, there is only one possible speed index for Hankook H750 Kinergy 4S2 - "V", which is good for speeds up to 240 km/h.