Metzeler ME 888 Marathon Ultra 260/40 R18

Metzeler ME 888 Marathon Ultra is a summer tyre made in total of 127 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 -80mm narrower than the widest one (180). 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.