CST Medallion All Season ACP1 225/50 R18

CST Medallion All Season ACP1 is a allround tyre made in total of 61 sizes, ranging from R13 to R13 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 225/50 R18 is 70mm wider than the narrowest dimension (155) and 30mm narrower than the widest one (255). This tyre profile of 50 means the sidewall height of the tyre is 50% of the tyre width (225mm), which results in 112.5mm sidewall height.