Table of contents:
255/45 R20 Nokian Powerproof variants
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Nokian Powerproof is a summer tyre made in total of 53 sizes, ranging from R17 to R17 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 255/45 R20 is 50mm wider than the narrowest dimension (205) and 20mm narrower than the widest one (275). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (255mm), which results in 114.75mm sidewall height. In 255/45 R20, Powerproof usually competes against Roadhawk, which is a tyre from Firestone with a rating of 59%, compared to 51% of the Nokian in question.
Nokian Powerproof is made in 53 sizes, starting from 205/50 R17 up to 275/45 R20.
