Imperial SnowDragon UHP 255/55 R19

Imperial SnowDragon UHP is a winter tyre made in total of 68 sizes, ranging from R16 to R16 - this particular dimension is R19, which means it fits to a 19 inch/482.6mm diameter wheel. 255/55 R19 is 80mm wider than the narrowest dimension (175) and 40mm narrower than the widest one (295). 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.