Firestone Winterhawk 175/65 R13

Firestone Winterhawk is a winter tyre made in total of 8 sizes, ranging from R13 to R13 - this particular dimension is R13, which means it fits to a 13 inch/330.2mm diameter wheel. 175/65 R13 is 10mm wider than the narrowest dimension (165) and 10mm narrower than the widest one (185). This tyre profile of 65 means the sidewall height of the tyre is 65% of the tyre width (175mm), which results in 113.75mm sidewall height.