Toyo Proxes Sport A 255/40 R19

Toyo Proxes Sport A is a summer tyre made in total of 17 sizes, ranging from R17 to R17 - this particular dimension is R19, which means it fits to a 19 inch/482.6mm diameter wheel. 255/40 R19 is 30mm wider than the narrowest dimension (225) and 0mm narrower than the widest one (255). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (255mm), which results in 102mm sidewall height.