Vredestein Ultrac Satin is a summer tyre made in total of 69 sizes, ranging from R16 to R16 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 215/40 R17 is 10mm wider than the narrowest dimension (205) and 20mm narrower than the widest one (235). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (215mm), which results in 86mm sidewall height. In 215/40 R17, there are 2 possible speed indexes for Vredestein Ultrac Satin - "V","Y", which are good for speeds up to 240, 300 km/h. In 215/40 R17, Ultrac Satin usually competes against Bravuris 5 HM, which is a tyre from Barum with a rating of 39%, compared to 0% of the Vredestein in question.