Nokian Snowproof 3P is a winter tyre made in total of 34 sizes, ranging from R17 to R17 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 285/40 R20 is 80mm wider than the narrowest dimension (205) and -20mm narrower than the widest one (265). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (285mm), which results in 114mm sidewall height. In
285/40 R20, Snowproof 3P usually competes against
WinterContact TS 870 P, which is a tyre from
Continental with a rating of 94%, compared to 0% of the
Nokian in question.
