145/70 R12 Royal Black Royal Mile variants
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Royal Black Royal Mile is a tyre made in total of 69 sizes, ranging from R13 to R13 - this particular dimension is R12, which means it fits to a 12 inch/304.8mm diameter wheel. This tyre profile of 70 means the sidewall height of the tyre is 70% of the tyre width (145mm), which results in 101.5mm sidewall height. In 145/70 R12, there is only one possible speed index for Royal Black Royal Mile - "T", which is good for speeds up to 190 km/h.
145/70 R12 69 T
Royal Black Royal Mile is made in 69 sizes, starting from 145/70 R12 up to 235/60 R16.