Continental WinterContact TS 860S 275/55 R20

Continental WinterContact TS 860S is a winter tyre made in total of 97 sizes, ranging from R16 to R16 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 275/55 R20 is 80mm wider than the narrowest dimension (195) and 40mm narrower than the widest one (315). This tyre profile of 55 means the sidewall height of the tyre is 55% of the tyre width (275mm), which results in 151.25mm sidewall height.