Barum Polaris 3 4x4 is a winter tyre made in total of 15 sizes, ranging from R15 to R15 - this particular dimension is R16, which means it fits to a 16 inch/406.4mm diameter wheel. 215/70 R16 is 10mm wider than the narrowest dimension (205) and 40mm narrower than the widest one (255). This tyre profile of 70 means the sidewall height of the tyre is 70% of the tyre width (215mm), which results in 150.5mm sidewall height. In 215/70 R16, there is only one possible speed index for Barum Polaris 3 4x4 - "T", which is good for speeds up to 190 km/h. In 215/70 R16, Polaris 3 4x4 usually competes against Blizzak LM-005, which is a tyre from Bridgestone with a rating of 87%, compared to 0% of the Barum in question.