Firestone Roadhawk is a summer tyre made in total of 174 sizes, ranging from R13 to R13 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 255/45 R18 is 90mm wider than the narrowest dimension (165) and 40mm narrower than the widest one (295). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (255mm), which results in 114.75mm sidewall height. In
255/45 R18, Roadhawk usually competes against
Summer, which is a tyre from
Cooper with a rating of 76%, compared to 60% of the
Firestone in question.
Summer
Summer
Summer
