Vredestein Quatrac Pro+ is a allround tyre made in total of 108 sizes, ranging from R17 to R17 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 215/45 R20 is 10mm wider than the narrowest dimension (205) and 70mm narrower than the widest one (285). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (215mm), which results in 96.75mm sidewall height. In 215/45 R20, there is only one possible speed index for Vredestein Quatrac Pro+ - "W", which is good for speeds up to 270 km/h. In 215/45 R20, Quatrac Pro+ usually competes against Quatrac Pro, which is a tyre from Vredestein with a rating of 62%, compared to 52% of the Vredestein in question.