225/55 R18 Barum Polaris 6 variants
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Barum Polaris 6 is a winter tyre made in total of 78 sizes, ranging from R14 to R14 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 225/55 R18 is 70mm wider than the narrowest dimension (155) and 30mm narrower than the widest one (255). This tyre profile of 55 means the sidewall height of the tyre is 55% of the tyre width (225mm), which results in 123.75mm sidewall height. In 225/55 R18, there is only one possible speed index for Barum Polaris 6 - "V", which is good for speeds up to 240 km/h.
Barum Polaris 6 is made in 78 sizes, starting from 155/65 R14 up to 255/40 R20.
