Hankook ION Evo is a summer tyre made in total of 66 sizes, ranging from R17 to R17 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 225/55 R18 is 10mm wider than the narrowest dimension (215) and 60mm narrower than the widest one (285). This tyre profile of 55 means the sidewall height of the tyre is 55% of the tyre width (225mm), which results in 123.75mm sidewall height. In
225/55 R18, ION Evo usually competes against
P ZERO PZ4, which is a tyre from
Pirelli with a rating of 86%, compared to 85% of the
Hankook in question.