Metzeler ME 880 Marathon 260/40 R18

Metzeler ME 880 Marathon is a winter tyre made in total of 24 sizes, ranging from R13 to R13 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 260/40 R18 is 120mm wider than the narrowest dimension (140) and 40mm narrower than the widest one (300). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (260mm), which results in 104mm sidewall height.