Kormoran Ultra High Performance 215/55 R18

Kormoran Ultra High Performance is a summer tyre made in total of 56 sizes, ranging from R17 to R17 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 215/55 R18 is 10mm wider than the narrowest dimension (205) and -20mm narrower than the widest one (195). This tyre profile of 55 means the sidewall height of the tyre is 55% of the tyre width (215mm), which results in 118.25mm sidewall height.