Nokian Snowproof 2 SUV 255/40 R21

Nokian Snowproof 2 SUV is a winter tyre made in total of 61 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 40mm narrower than the widest one (295). 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, Snowproof 2 SUV usually competes against Ventus Prime 4, which is a tyre from Hankook with a rating of 76%, compared to 71% of the Nokian in question.