Hankook Kinergy 4S H740 is a allround tyre made in total of 94 sizes, ranging from R13 to R13 - this particular dimension is R15, which means it fits to a 15 inch/381mm diameter wheel. This tyre profile of 65 means the sidewall height of the tyre is 65% of the tyre width (145mm), which results in 94.25mm sidewall height. In 145/65 R15, there is only one possible speed index for Hankook Kinergy 4S H740 - "T", which is good for speeds up to 190 km/h.