Westlake All Season Elite Z401 225/50 R18

Westlake All Season Elite Z401 is a allround tyre made in total of 138 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 20mm narrower than the widest one (245). 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.