Why do we use CC’s for motorcycle engines?

Question

I understand that CC’s = mL’s, but CC’s is something that I have always associated with the medical field.. so how did motorcycles get roped into that? Is it just easier to say “I have a 250cc dirt bike” rather than saying “250mL?”

In: 33

Answer 1

Cubic centimetres would have been the original unit for describing engine displacement volume. When engines have gotten bigger it’s eventually become easier to describe their size in a larger denomination, but hardly anyone says cubic decimetres, so litres it is.