Nexen Winguard Ice 3 245/40 R18

Nexen Winguard Ice 3 is a winter tyre made in total of 55 sizes, ranging from R14 to R14 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 245/40 R18 is 70mm wider than the narrowest dimension (175) and -10mm narrower than the widest one (235). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (245mm), which results in 98mm sidewall height.