Vredestein Ultrac Satin is a summer tyre made in total of 69 sizes, ranging from R16 to R16 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 215/50 R18 is 10mm wider than the narrowest dimension (205) and 20mm narrower than the widest one (235). This tyre profile of 50 means the sidewall height of the tyre is 50% of the tyre width (215mm), which results in 107.5mm sidewall height. In 215/50 R18, there is only one possible speed index for Vredestein Ultrac Satin - "W", which is good for speeds up to 270 km/h. In 215/50 R18, Ultrac Satin usually competes against Bravuris 5 HM, which is a tyre from Barum with a rating of 30%, compared to 0% of the Vredestein in question. Latest test in 215/50 R18 was held by Gute-Fahrt in 2020, where Ultrac Satin received rating "Good -" and finished on the 6. place. It was tested on a .
