Dunlop SP Sport MAXX RT2 275/40 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. 275/40 R18 is 70mm wider than the narrowest dimension (205) and 10mm narrower than the widest one (285). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (275mm), which results in 110mm sidewall height. In 275/40 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.