Firestone Winterhawk 3 is a winter tyre made in total of 64 sizes, ranging from R13 to R13 - this particular dimension is R14, which means it fits to a 14 inch/355.6mm diameter wheel. 175/65 R14 is 20mm wider than the narrowest dimension (155) and 70mm narrower than the widest one (245). 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. In 175/65 R14, there is only one possible speed index for Firestone Winterhawk 3 - "T", which is good for speeds up to 190 km/h. In 175/65 R14, Winterhawk 3 usually competes against WinterExpert, which is a tyre from Uniroyal with a rating of 64%, compared to 0% of the Firestone in question. Latest test in 175/65 R14 was held by ADAC in 2018, where Winterhawk 3 received rating "Satisfactory" and finished on the 3. place. It was tested on a Ford Fiesta.
