Vredestein Ultrac Vorti is a summer tyre made in total of 69 sizes, ranging from R17 to R17 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 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 is only one possible speed index for Vredestein Ultrac Vorti - "Y", which is good for speeds up to 300 km/h. In 225/40 R18, Ultrac Vorti usually competes against Sportnex AS-2+, which is a tyre from Nankang with a rating of 20%, compared to 0% of the Vredestein in question. Latest test in 225/40 R18 was held by Gute-Fahrt in 2019, where Ultrac Vorti received rating "Good" and finished on the 10. place. It was tested on a .
