Nokian WR SUV 4 is a winter tyre made in total of 69 sizes, ranging from R16 to R16 - this particular dimension is R21, which means it fits to a 21 inch/533.4mm diameter wheel. 255/40 R21 is 40mm wider than the narrowest dimension (215) and 60mm narrower than the widest one (315). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (255mm), which results in 102mm sidewall height. In
255/40 R21, WR SUV 4 usually competes against
Snowproof 2 SUV, which is a tyre from
Nokian with a rating of 61%, compared to 0% of the
Nokian in question.
Winter
