Firestone Roadhawk 2 225/55 R16

Firestone Roadhawk 2 is a summer tyre made in total of 143 sizes, ranging from R16 to R16 - this particular dimension is R16, which means it fits to a 16 inch/406.4mm diameter wheel. 225/55 R16 is 40mm wider than the narrowest dimension (185) 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.