Nankang Noble Sport NS-20 255/35 R18

Nankang Noble Sport NS-20 is a summer tyre made in total of 163 sizes, ranging from R13 to R13 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 255/35 R18 is 60mm wider than the narrowest dimension (195) and -10mm narrower than the widest one (245). This tyre profile of 35 means the sidewall height of the tyre is 35% of the tyre width (255mm), which results in 89.25mm sidewall height.