Maxtrek Trek M7 Plus 225/45 R18

Maxtrek Trek M7 Plus is a winter tyre made in total of 9 sizes, ranging from R17 to R17 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 225/45 R18 is 10mm wider than the narrowest dimension (215) and 30mm narrower than the widest one (255). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (225mm), which results in 101.25mm sidewall height.