Nexen ROADIAN HT 255/70 R15

Nexen ROADIAN HT is a summer tyre made in total of 27 sizes, ranging from R13 to R13 - this particular dimension is R15, which means it fits to a 15 inch/381mm diameter wheel. 255/70 R15 is 40mm wider than the narrowest dimension (215) and -10mm narrower than the widest one (245). This tyre profile of 70 means the sidewall height of the tyre is 70% of the tyre width (255mm), which results in 178.5mm sidewall height.