GT RADIAL ClimateActive 255/45 R19

GT RADIAL ClimateActive is a allround tyre made in total of 59 sizes, ranging from R15 to R15 - this particular dimension is R19, which means it fits to a 19 inch/482.6mm diameter wheel. 255/45 R19 is 90mm wider than the narrowest dimension (165) and 30mm narrower than the widest one (285). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (255mm), which results in 114.75mm sidewall height.