Continental Conti Hybrid Hs3 is a allround tyre made in total of 22 sizes, ranging from R13 to R13 - this particular dimension is R23, which means it fits to a 23 inch/584.2mm diameter wheel. 315/70 R22.5 is 303mm wider than the narrowest dimension (12) and 0mm narrower than the widest one (315). This tyre profile of 70 means the sidewall height of the tyre is 70% of the tyre width (315mm), which results in 220.5mm sidewall height. In 315/70 R22.5, there is only one possible speed index for Continental Conti Hybrid Hs3 - "", which is good for speeds up to km/h.