Dunlop SP Sport MAXX RT2 is a summer tyre made in total of 28 sizes, ranging from R17 to R17 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 225/60 R18 is 20mm wider than the narrowest dimension (205) and 60mm narrower than the widest one (285). This tyre profile of 60 means the sidewall height of the tyre is 60% of the tyre width (225mm), which results in 135mm sidewall height. In
225/60 R18, SP Sport MAXX RT2 usually competes against
Cinturato P7, which is a tyre from
Pirelli with a rating of 80%, compared to 77% of the
Dunlop in question.