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. 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, there is only one possible speed index for Firestone Winterhawk 4 - "T", which is good for speeds up to 190 km/h. 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 65% 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.
Relevant tyre tests in same or similiar dimension (185/65 R15)
ADAC Winter tyre test 2022 185/65 R15 satisfactory Ranked #9 of 16Securing the 9th position out of 16 competitors, the Firestone Winterhawk 4 earned a final rating of "Satisfactory." Despite performing well on wet roads, snow, and ice, and showing the best score in terms of fuel consumption and wear, its weaknesses on dry roads led to a downgrading of its overall assessment. This tire showcased commendable results in challenging winter conditions, highlighting its efficiency and durability. However, its performance on dry surfaces couldn't measure up, resulting in a recommendation with reservations. The Winterhawk 4 shines in its economic use of fuel and resilience but falls short when it comes to dry pavement, balancing its strengths and weaknesses in winter driving scenarios.