Continental Ultra Contact is a tyre made in total of 46 sizes, ranging from R14 to R14 - this particular dimension is R16, which means it fits to a 16 inch/406.4mm diameter wheel. 215/70 R16 is 60mm wider than the narrowest dimension (155) and -10mm narrower than the widest one (205). This tyre profile of 70 means the sidewall height of the tyre is 70% of the tyre width (215mm), which results in 150.5mm sidewall height. In 215/70 R16, there is only one possible speed index for Continental Ultra Contact - "H", which is good for speeds up to 210 km/h.