Nankang VAN TR-10 is a tyre made in total of 9 sizes, ranging from R13 to R13 - this particular dimension is R13, which means it fits to a 13 inch/330.2mm diameter wheel. 195/50 R13 is 50mm wider than the narrowest dimension (145) and 0mm narrower than the widest one (195). This tyre profile of 50 means the sidewall height of the tyre is 50% of the tyre width (195mm), which results in 97.5mm sidewall height. In 195/50 R13, there is only one possible speed index for Nankang VAN TR-10 - "", which is good for speeds up to km/h.