Continental WinterContact TS 870 185/50 R17

Continental WinterContact TS 870 is a winter tyre made in total of 80 sizes, ranging from R14 to R14 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 185/50 R17 is 30mm wider than the narrowest dimension (155) and -10mm narrower than the widest one (175). This tyre profile of 50 means the sidewall height of the tyre is 50% of the tyre width (185mm), which results in 92.5mm sidewall height.