Continental Wintercontact Ts870P 255/45 R19

Continental Wintercontact Ts870P is a 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. 255/45 R19 is 40mm wider than the narrowest dimension (215) 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.