Vredestein Ultrac+ 235/55 R18

Vredestein Ultrac+ is a summer tyre made in total of 79 sizes, ranging from R15 to R15 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 235/55 R18 is 60mm wider than the narrowest dimension (175) and -40mm narrower than the widest one (195). This tyre profile of 55 means the sidewall height of the tyre is 55% of the tyre width (235mm), which results in 129.25mm sidewall height. In 235/55 R18, Ultrac+ usually competes against Protech NewGen, which is a tyre from Viking with a rating of 32%, compared to 58% of the Vredestein in question.