Continental Conti Hybrid Ht3 is a allround tyre made in total of 13 sizes, ranging from R19 to R19 - this particular dimension is R23, which means it fits to a 23 inch/584.2mm diameter wheel. 385/65 R22.5 is 140mm wider than the narrowest dimension (245) and 0mm narrower than the widest one (385). This tyre profile of 65 means the sidewall height of the tyre is 65% of the tyre width (385mm), which results in 250.25mm sidewall height. In 385/65 R22.5, there is only one possible speed index for Continental Conti Hybrid Ht3 - "K", which is good for speeds up to km/h.