Kleber Dynaxer UHP is a summer tyre made in total of 44 sizes, ranging from R17 to R17 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 245/45 R18 is 50mm wider than the narrowest dimension (195) and 10mm narrower than the widest one (255). 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 R18, there are 2 possible speed indexes for Kleber Dynaxer UHP - "W","Y", which are good for speeds up to 270, 300 km/h. In 245/45 R18, Dynaxer UHP usually competes against Advantage, which is a tyre from BFGoodrich with a rating of 66%, compared to 43% of the Kleber in question. Latest test in 245/45 R18 was held by Autobild in 2020, where Dynaxer UHP received rating "Satisfactory" and finished on the 15. place. It was tested on a BMW 5 series.