Nokian WR D3 is a winter tyre made in total of 34 sizes, ranging from R13 to R13 - this particular dimension is R13, which means it fits to a 13 inch/330.2mm diameter wheel. This tyre profile of 70 means the sidewall height of the tyre is 70% of the tyre width (155mm), which results in 108.5mm sidewall height. In 155/70 R13, there is only one possible speed index for Nokian WR D3 - "T", which is good for speeds up to 190 km/h. In 155/70 R13, WR D3 usually competes against Polaris 3, which is a tyre from Barum with a rating of 44%, compared to 47% of the Nokian in question.