Avon ZX7 is a summer tyre made in total of 41 sizes, ranging from R16 to R16 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 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. In
215/55 R18, ZX7 usually competes against
Tire Grabber GT Plus, which is a tyre from
General with a rating of 38%, compared to 25% of the
Avon in question.
