Table of contents:
255/40 R19 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 R19, which means it fits to a 19 inch/482.6mm diameter wheel. 255/40 R19 is 50mm wider than the narrowest dimension (205) and 20mm narrower than the widest one (275). 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 R19, there is only one possible speed index for Nokian Powerproof - "Y", which is good for speeds up to 300 km/h. In 255/40 R19, Powerproof usually competes against Advan Sport V107, which is a tyre from Yokohama with a rating of 59%, compared to 0% of the Nokian in question.
Nokian Powerproof is made in 53 sizes, starting from 205/50 R17 up to 275/45 R20.
