Firestone Firehawk Sport 265/35 R18

Firestone Firehawk Sport is a summer tyre made in total of 36 sizes, ranging from R18 to R18 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 265/35 R18 is 50mm wider than the narrowest dimension (215) and 10mm narrower than the widest one (275). This tyre profile of 35 means the sidewall height of the tyre is 35% of the tyre width (265mm), which results in 92.75mm sidewall height.