Michelin Pilot Sport 4 SUV 325/40 R22

Michelin Pilot Sport 4 SUV is a summer tyre made in total of 142 sizes, ranging from R17 to R17 - this particular dimension is R22, which means it fits to a 22 inch/558.8mm diameter wheel. 325/40 R22 is 100mm wider than the narrowest dimension (225) and 10mm narrower than the widest one (335). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (325mm), which results in 130mm sidewall height.