Pirelli P ZERO Nero GT 255/35 R19

Pirelli P ZERO Nero GT is a summer tyre made in total of 42 sizes, ranging from R16 to R16 - this particular dimension is R19, which means it fits to a 19 inch/482.6mm diameter wheel. 255/35 R19 is 60mm wider than the narrowest dimension (195) and 50mm narrower than the widest one (305). This tyre profile of 35 means the sidewall height of the tyre is 35% of the tyre width (255mm), which results in 89.25mm sidewall height.