Cooper Zeon CS8 235/40 R18

Cooper Zeon CS8 is a summer tyre made in total of 148 sizes, ranging from R15 to R15 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 235/40 R18 is 50mm wider than the narrowest dimension (185) and 20mm narrower than the widest one (255). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (235mm), which results in 94mm sidewall height. In 235/40 R18, Zeon CS8 usually competes against Bravuris 5 HM, which is a tyre from Barum with a rating of 25%, compared to 28% of the Cooper in question.