Vredestein Ultrac Pro 255/40 R18

Vredestein Ultrac Pro is a summer tyre made in total of 91 sizes, ranging from R18 to R18 - 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 100mm narrower than the widest one (355). 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, Ultrac Pro usually competes against Proxes Sport 2, which is a tyre from Toyo with a rating of 71%, compared to 79% of the Vredestein in question.