Gripmax SureGrip Pro Winter 205/45 R18

Gripmax SureGrip Pro Winter is a winter tyre made in total of 35 sizes, ranging from R17 to R17 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 205/45 R18 is 30mm wider than the narrowest dimension (175) and 130mm narrower than the widest one (335). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (205mm), which results in 92.25mm sidewall height.