Vredestein ULTRAC 235/50 R18

Vredestein ULTRAC is a summer tyre made in total of 83 sizes, ranging from R15 to R15 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 235/50 R18 is 60mm wider than the narrowest dimension (175) and 60mm narrower than the widest one (295). This tyre profile of 50 means the sidewall height of the tyre is 50% of the tyre width (235mm), which results in 117.5mm sidewall height. In 235/50 R18, ULTRAC usually competes against PremiumContact 7, which is a tyre from Continental with a rating of 97%, compared to 16% of the Vredestein in question.