Semperit Speed-Grip 5 255/45 R19

Semperit Speed-Grip 5 is a winter tyre made in total of 130 sizes, ranging from R14 to R14 - this particular dimension is R19, which means it fits to a 19 inch/482.6mm diameter wheel. 255/45 R19 is 90mm wider than the narrowest dimension (165) and 30mm narrower than the widest one (285). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (255mm), which results in 114.75mm sidewall height. In 255/45 R19, Speed-Grip 5 usually competes against Polaris 6, which is a tyre from Barum with a rating of 83%, compared to 80% of the Semperit in question.