Michelin e.Primacy 225/40 R18

Michelin e.Primacy is a summer tyre made in total of 178 sizes, ranging from R15 to R15 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 225/40 R18 is 60mm wider than the narrowest dimension (165) and 50mm narrower than the widest one (275). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (225mm), which results in 90mm sidewall height. In 225/40 R18, e.Primacy usually competes against Ecocontact 6, which is a tyre from Continental with a rating of 77%, compared to 74% of the Michelin in question.