Minerva Frostrack UHP 205/40 R18

Minerva Frostrack UHP is a winter tyre made in total of 67 sizes, ranging from R16 to R16 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 205/40 R18 is 30mm wider than the narrowest dimension (175) and 90mm narrower than the widest one (295). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (205mm), which results in 82mm sidewall height.