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. 225/40 R18 is 30mm wider than the narrowest dimension (195) and 30mm narrower than the widest one (255). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (225mm), which results in 90mm sidewall height. In 225/40 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 225/40 R18, Dynaxer UHP usually competes against Quatrac Pro+, which is a tyre from Vredestein with a rating of 52%, compared to 48% of the Kleber in question.
Relevant tyre tests in same or similiar dimension (225/40 R18)
Autobild Summer tyre test 2023 225/45 R18 satisfactory Ranked #17 of 20The Kleber Dynaxer UHP finished 17th among 20 competitors but earned a final rating of 'Satisfactory.' In this evaluation, it was noted for its excellent mileage, quiet rolling noise, and low rolling resistance. Despite these positive attributes, the tyre faced criticism for its moderate grip and reduced lateral handling on wet surfaces, along with limited aquaplaning reserves. A standout feature of the Kleber Dynaxer UHP was its performance in exterior noise, where it was ranked absolutely the best among the competitors, highlighting its capacity to provide a quieter driving experience.