Pirelli Scorpion Ice 275/40 R20

Pirelli Scorpion Ice is a tyre made in total of 7 sizes, ranging from R16 to R16 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 275/40 R20 is 20mm wider than the narrowest dimension (255) and -10mm narrower than the widest one (265). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (275mm), which results in 110mm sidewall height.