Tomket Snowroad PRO 3 is a winter tyre made in total of 5 sizes, ranging from R14 to R14 - this particular dimension is R15, which means it fits to a 15 inch/381mm diameter wheel. This tyre profile of 55 means the sidewall height of the tyre is 55% of the tyre width (185mm), which results in 101.75mm sidewall height. In 185/55 R15, there is only one possible speed index for Tomket Snowroad PRO 3 - "", which is good for speeds up to km/h.