Goodyear Wrangler DuraTrac RT 255/55 R19

Goodyear Wrangler DuraTrac RT is a summer tyre made in total of 45 sizes, ranging from R15 to R15 - this particular dimension is R19, which means it fits to a 19 inch/482.6mm diameter wheel. 255/55 R19 is 224mm wider than the narrowest dimension (31) and 20mm narrower than the widest one (275). This tyre profile of 55 means the sidewall height of the tyre is 55% of the tyre width (255mm), which results in 140.25mm sidewall height.