Imperial IR1 205/65 R16

Imperial IR1 is a winter tyre made in total of 4 sizes, ranging from R13 to R13 - this particular dimension is R16, which means it fits to a 16 inch/406.4mm diameter wheel. 205/65 R16 is 50mm wider than the narrowest dimension (155) and 0mm narrower than the widest one (205). This tyre profile of 65 means the sidewall height of the tyre is 65% of the tyre width (205mm), which results in 133.25mm sidewall height.