Continental Conti Hybrid Hs3 is a allround tyre made in total of 21 sizes, ranging from R19 to R19 - this particular dimension is R22, which means it fits to a 22 inch/558.8mm diameter wheel. 385/55 R22,5 is 140mm wider than the narrowest dimension (245) and -70mm narrower than the widest one (315). This tyre profile of 55 means the sidewall height of the tyre is 55% of the tyre width (385mm), which results in 211.75mm sidewall height. In 385/55 R22,5, there is only one possible speed index for Continental Conti Hybrid Hs3 - "K", which is good for speeds up to km/h.