Continental WinterContact TS 870 P is a winter tyre made in total of 83 sizes, ranging from R16 to R16 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 265/50 R20 is 60mm wider than the narrowest dimension (205) and 60mm narrower than the widest one (325). This tyre profile of 50 means the sidewall height of the tyre is 50% of the tyre width (265mm), which results in 132.5mm sidewall height. In 265/50 R20, there is only one possible speed index for Continental WinterContact TS 870 P - "V", which is good for speeds up to 240 km/h. In 265/50 R20, WinterContact TS 870 P usually competes against Blizzak LM-005, which is a tyre from Bridgestone with a rating of 92%, compared to 97% of the Continental in question.