Semperit Speed-Grip 5 is a winter tyre made in total of 93 sizes, ranging from R14 to R14 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 235/55 R18 is 70mm wider than the narrowest dimension (165) and 40mm narrower than the widest one (275). 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, Speed-Grip 5 usually competes against
Polaris 6, which is a tyre from
Barum with a rating of 83%, compared to 78% of the
Semperit in question.
Winter
