Continental CrossContact ATR is a winter tyre made in total of 52 sizes, ranging from R15 to R15 - this particular dimension is R16, which means it fits to a 16 inch/406.4mm diameter wheel. 235/85 R16 is 30mm wider than the narrowest dimension (205) and 40mm narrower than the widest one (275). This tyre profile of 85 means the sidewall height of the tyre is 85% of the tyre width (235mm), which results in 199.75mm sidewall height. In 235/85 R16, there is only one possible speed index for Continental CrossContact ATR - "S", which is good for speeds up to 180 km/h.