Firestone Winterhawk 4 is a winter tyre made in total of 100 sizes, ranging from R14 to R14 - this particular dimension is R15, which means it fits to a 15 inch/381mm diameter wheel. 205/65 R15 is 50mm wider than the narrowest dimension (155) and 70mm narrower than the widest one (275). This tyre profile of 65 means the sidewall height of the tyre is 65% of the tyre width (205mm), which results in 133.25mm sidewall height. In 205/65 R15, there is only one possible speed index for Firestone Winterhawk 4 - "T", which is good for speeds up to 190 km/h. In 205/65 R15, Winterhawk 4 usually competes against Blizzak LM-005, which is a tyre from Bridgestone with a rating of 87%, compared to 65% of the Firestone in question.
AUTOBILD Winter tyre test 2024 205/55 R16 satisfactory Ranked #18 of 20Finishing 18th out of 20 competitors, the Firestone Winterhawk 4 earned a final rating of 'Satisfactory.' It performed admirably with good winter suitability and secure handling characteristics on wet tracks. However, the tire was criticized for its delayed steering response and limited mileage performance. Notably, it was most successful in the aquaplaning (longitudinal) discipline, demonstrating strong performance in this particular area.