CST Medallion MD-A1 is a summer tyre made in total of 264 sizes, ranging from R13 to R13 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 245/40 R18 is 90mm wider than the narrowest dimension (155) and 40mm narrower than the widest one (285). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (245mm), which results in 98mm sidewall height. In
245/40 R18, Medallion MD-A1 usually competes against
Eagle F1 Asymmetric 5, which is a tyre from
GoodYear with a rating of 0%, compared to 0% of the
CST in question.