Nankang Econex NA-1 185/55 R15

Nankang Econex NA-1 is a tyre made in total of 88 sizes, ranging from R13 to R13 - this particular dimension is R15, which means it fits to a 15 inch/381mm diameter wheel. 185/55 R15 is 40mm wider than the narrowest dimension (145) and -10mm narrower than the widest one (175). 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.