Continental Contact CST17 is a summer tyre made in total of 37 sizes, ranging from R15 to R15 - this particular dimension is R16, which means it fits to a 16 inch/406.4mm diameter wheel. This tyre profile of 90 means the sidewall height of the tyre is 90% of the tyre width (115mm), which results in 103.5mm sidewall height. In , there is only one possible speed index for Continental Contact CST17 - "M", which is good for speeds up to km/h.