Hankook Ventus Prime3 K125 is a summer tyre made in total of 149 sizes, ranging from R15 to R15 - this particular dimension is R19, which means it fits to a 19 inch/482.6mm diameter wheel. 225/55 R19 is 40mm wider than the narrowest dimension (185) and -30mm narrower than the widest one (195). This tyre profile of 55 means the sidewall height of the tyre is 55% of the tyre width (225mm), which results in 123.75mm sidewall height. In 225/55 R19, there is only one possible speed index for Hankook Ventus Prime3 K125 - "V", which is good for speeds up to 240 km/h.
