Dunlop SP Sport MAXX TT 215/45 R18

Dunlop SP Sport MAXX TT is a summer tyre made in total of 24 sizes, ranging from R16 to R16 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 215/45 R18 is 20mm wider than the narrowest dimension (195) and 30mm narrower than the widest one (245). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (215mm), which results in 96.75mm sidewall height.