Kleber Dynaxer HP4 is a summer tyre made in total of 120 sizes, ranging from R14 to R14 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 245/45 R20 is 90mm wider than the narrowest dimension (155) and -10mm narrower than the widest one (235). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (245mm), which results in 110.25mm sidewall height. In 245/45 R20, Dynaxer HP4 usually competes against Advantage, which is a tyre from BFGoodrich with a rating of 68%, compared to 76% of the Kleber in question.