Nokian Hakkapeliitta R3 245/45 R20

Nokian Hakkapeliitta R3 is a winter tyre made in total of 78 sizes, ranging from R14 to R14 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 245/45 R20 is 70mm wider than the narrowest dimension (175) and 20mm narrower than the widest one (265). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (245mm), which results in 110.25mm sidewall height.