Michelin Primacy 4 295/30 R20

Michelin Primacy 4 is a summer tyre made in total of 384 sizes, ranging from R14 to R14 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 295/30 R20 is 140mm wider than the narrowest dimension (155) and 10mm narrower than the widest one (305). This tyre profile of 30 means the sidewall height of the tyre is 30% of the tyre width (295mm), which results in 88.5mm sidewall height.