Michelin Alpin A4 185/55 R16

Michelin Alpin A4 is a winter tyre made in total of 42 sizes, ranging from R14 to R14 - this particular dimension is R16, which means it fits to a 16 inch/406.4mm diameter wheel. 185/55 R16 is 20mm wider than the narrowest dimension (165) and 40mm narrower than the widest one (225). This tyre profile of 55 means the sidewall height of the tyre is 55% of the tyre width (185mm), which results in 101.75mm sidewall height.