Firestone Winterhawk 4 is a winter tyre made in total of 102 sizes, ranging from R14 to R14 - this particular dimension is R15, which means it fits to a 15 inch/381mm diameter wheel. 185/65 R15 is 30mm wider than the narrowest dimension (155) and 90mm narrower than the widest one (275). This tyre profile of 65 means the sidewall height of the tyre is 65% of the tyre width (185mm), which results in 120.25mm sidewall height. In
185/65 R15, Winterhawk 4 usually competes against
Blizzak LM-005, which is a tyre from
Bridgestone with a rating of 87%, compared to 63% of the
Firestone in question. Latest test in
185/65 R15 was held by ADAC in 2022, where Winterhawk 4 received rating "Satisfactory" and finished on the 9. place. It was tested on a
VW Polo.