285/45 R21 Viking Fourtech variants

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Viking Fourtech is a allround tyre made in total of 32 sizes, ranging from R13 to R13 - this particular dimension is R21, which means it fits to a 21 inch/533.4mm diameter wheel. 285/45 R21 is 110mm wider than the narrowest dimension (175) and -50mm narrower than the widest one (235). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (285mm), which results in 128.25mm sidewall height. In 285/45 R21, Fourtech usually competes against N blue 4 Season, which is a tyre from Nexen with a rating of 45%, compared to 45% of the Viking in question.