Continental WinterContact TS 860S is a winter tyre made in total of 97 sizes, ranging from R16 to R16 - this particular dimension is R22, which means it fits to a 22 inch/558.8mm diameter wheel. 285/40 R22 is 90mm wider than the narrowest dimension (195) and 30mm narrower than the widest one (315). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (285mm), which results in 114mm sidewall height. In 285/40 R22, there is only one possible speed index for Continental WinterContact TS 860S - "W", which is good for speeds up to 270 km/h. In 285/40 R22, WinterContact TS 860S usually competes against Blizzak LM-005, which is a tyre from Bridgestone with a rating of 92%, compared to 65% of the Continental in question.