Nokian WR A4 is a winter tyre made in total of 59 sizes, ranging from R16 to R16 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 255/35 R20 is 50mm wider than the narrowest dimension (205) and -10mm narrower than the widest one (245). This tyre profile of 35 means the sidewall height of the tyre is 35% of the tyre width (255mm), which results in 89.25mm sidewall height. In
255/35 R20, WR A4 usually competes against
ContiWinterContact TS 850P, which is a tyre from
Continental with a rating of 0%, compared to 0% of the
Nokian in question.
Winter
