Continental Ultra Contact 215/45 R18

Continental Ultra Contact is a tyre made in total of 46 sizes, ranging from R14 to R14 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 215/45 R18 is 60mm wider than the narrowest dimension (155) and -10mm narrower than the widest one (205). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (215mm), which results in 96.75mm sidewall height.