Hankook Kinergy 4S2 H750 is a allround tyre made in total of 135 sizes, ranging from R14 to R14 - this particular dimension is R14, which means it fits to a 14 inch/355.6mm diameter wheel. 185/65 R14 is 30mm wider than the narrowest dimension (155) and 100mm narrower than the widest one (285). This tyre profile of 65 means the sidewall height of the tyre is 65% of the tyre width (185mm), which results in 120.25mm sidewall height. In 185/65 R14, there is only one possible speed index for Hankook Kinergy 4S2 H750 - "H", which is good for speeds up to 210 km/h.