Vredestein Ultrac Pro 275/50 R20

Vredestein Ultrac Pro is a summer tyre made in total of 91 sizes, ranging from R18 to R18 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 275/50 R20 is 70mm wider than the narrowest dimension (205) and 80mm narrower than the widest one (355). This tyre profile of 50 means the sidewall height of the tyre is 50% of the tyre width (275mm), which results in 137.5mm sidewall height.