Nokian WR D4 245/45 R18

Nokian WR D4 is a winter tyre made in total of 82 sizes, ranging from R13 to R13 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 245/45 R18 is 90mm wider than the narrowest dimension (155) and 30mm narrower than the widest one (275). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (245mm), which results in 110.25mm sidewall height. In 245/45 R18, WR D4 usually competes against WR Snowproof, which is a tyre from Nokian with a rating of 68%, compared to 0% of the Nokian in question.