Vredestein Quatrac Pro+ is a allround tyre made in total of 121 sizes, ranging from R17 to R17 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 235/55 R18 is 30mm wider than the narrowest dimension (205) and 50mm narrower than the widest one (285). 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, Quatrac Pro+ usually competes against
Quatrac Pro, which is a tyre from
Vredestein with a rating of 52%, compared to 60% of the
Vredestein in question.