Imperial IR1 165/80 R13

Imperial IR1 is a winter tyre made in total of 4 sizes, ranging from R13 to R13 - this particular dimension is R13, which means it fits to a 13 inch/330.2mm diameter wheel. 165/80 R13 is 10mm wider than the narrowest dimension (155) and 40mm narrower than the widest one (205). This tyre profile of 80 means the sidewall height of the tyre is 80% of the tyre width (165mm), which results in 132mm sidewall height.