Metzeler ME 880 Marathon 200/50 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. 200/50 R18 is 60mm wider than the narrowest dimension (140) and 100mm narrower than the widest one (300). This tyre profile of 50 means the sidewall height of the tyre is 50% of the tyre width (200mm), which results in 100mm sidewall height.