Barum Polaris 5 is a winter tyre made in total of 74 sizes, ranging from R13 to R13 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 205/45 R18 is 70mm wider than the narrowest dimension (135) and 50mm narrower than the widest one (255). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (205mm), which results in 92.25mm sidewall height. In 205/45 R18, there is only one possible speed index for Barum Polaris 5 - "V", which is good for speeds up to 240 km/h.
Relevant tyre tests in same or similiar dimension (205/45 R18)
AUTOBILD Winter tyre test 2024 205/55 R16 satisfactory Ranked #16 of 20The Barum Polaris 5 finished 16th out of 20 competitors, receiving a final rating of 'Satisfactory'. Praised for its convincing winter capabilities and reliable dry-road handling, the tyre also excelled in rolling resistance. However, it was noted for lacking grip on wet surfaces and offered minimal safety reserves against aquaplaning.