Dunlop SP Sport MAXX 255/30 R19

Dunlop SP Sport MAXX is a summer tyre made in total of 57 sizes, ranging from R16 to R16 - this particular dimension is R19, which means it fits to a 19 inch/482.6mm diameter wheel. 255/30 R19 is 40mm wider than the narrowest dimension (215) and 50mm narrower than the widest one (305). This tyre profile of 30 means the sidewall height of the tyre is 30% of the tyre width (255mm), which results in 76.5mm sidewall height.