Dunlop Sport All Season 225/40 R18

Dunlop Sport All Season is a allround tyre made in total of 34 sizes, ranging from R14 to R14 - 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 10mm narrower than the widest one (235). 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, Sport All Season usually competes against AllSeasonContact, which is a tyre from Continental with a rating of 58%, compared to 40% of the Dunlop in question.