Continental ContiWinterContact TS 850P is a winter tyre made in total of 0 sizes, ranging from R13 to R13 - this particular dimension is R19, which means it fits to a 19 inch/482.6mm diameter wheel. 155/70 R19 is 155mm wider than the narrowest dimension () and -155mm narrower than the widest one (). This tyre profile of 70 means the sidewall height of the tyre is 70% of the tyre width (155mm), which results in 108.5mm sidewall height.