Vredestein Wintrac Pro is a winter tyre made in total of 118 sizes, ranging from R17 to R17 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 255/40 R18 is 50mm wider than the narrowest dimension (205) and 70mm narrower than the widest one (325). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (255mm), which results in 102mm sidewall height. In 255/40 R18, there is only one possible speed index for Vredestein Wintrac Pro - "Y", which is good for speeds up to 300 km/h.
Relevant tyre tests in same or similiar dimension (255/40 R18)
Automotorsport Winter tyre test 2023 255/45 R20 good Ranked #6 of 7In a recent evaluation among winter tires, the Vredestein Wintrac Pro secured the 6th position out of 7 competitors, earning a final rating of "Good." Despite its standing, the tire showcased strengths that merit acknowledgement. It was commended for its excellent traction and decent braking capabilities on snow – a feature that distinguished it as the best in its class for snow traction. It also demonstrated consistently good performance on wet surfaces, maintaining a neutral and responsive driving experience. Its balanced dry dynamics further contributed to its positive assessment. However, the tire was not without its drawbacks, which included surprisingly lower cornering grip on snow relative to its longitudinal dynamics. It faced slight deficits in cornering aquaplaning resistance and comfort, notably due to noise while turning. These issues aside, if mastering the fundamentals is the goal, the Vredestein Wintrac Pro stands as a competent choice, particularly for those prioritizing essential winter driving capabilities.