Imperial Ecodriver 4 185/50 R16

Imperial Ecodriver 4 is a summer tyre made in total of 65 sizes, ranging from R13 to R13 - this particular dimension is R16, which means it fits to a 16 inch/406.4mm diameter wheel. 185/50 R16 is 50mm wider than the narrowest dimension (135) and 0mm narrower than the widest one (185). This tyre profile of 50 means the sidewall height of the tyre is 50% of the tyre width (185mm), which results in 92.5mm sidewall height.