Royal Black Royalwinter UHP is a winter tyre made in total of 37 sizes, ranging from R16 to R16 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (215mm), which results in 96.75mm sidewall height. In
215/45 R18, Black winter UHP usually competes against
Snowpower UHP, which is a tyre from
Tristar with a rating of 0%, compared to 16% of the
Royal in question.
Winter
