Dunlop SP Sport MAXX RT2 225/55 R18

Dunlop SP Sport MAXX RT2 is a summer tyre made in total of 101 sizes, ranging from R17 to R17 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 225/55 R18 is 20mm wider than the narrowest dimension (205) and 60mm narrower than the widest one (285). This tyre profile of 55 means the sidewall height of the tyre is 55% of the tyre width (225mm), which results in 123.75mm sidewall height. In 225/55 R18, SP Sport MAXX RT2 usually competes against Cinturato P7, which is a tyre from Pirelli with a rating of 70%, compared to 69% of the Dunlop in question.