Michelin Alpin A4 215/65 R15

Michelin Alpin A4 is a winter tyre made in total of 42 sizes, ranging from R14 to R14 - this particular dimension is R15, which means it fits to a 15 inch/381mm diameter wheel. 215/65 R15 is 50mm wider than the narrowest dimension (165) and 10mm narrower than the widest one (225). This tyre profile of 65 means the sidewall height of the tyre is 65% of the tyre width (215mm), which results in 139.75mm sidewall height.