air v's water cooled

[ferret]

yes if you want to get picky you can go back to the late 1800's for the introduction of a water cooled bike engines but I think Suzuki was the first mass produced bike sometime in the early 70's
and I suppose the art of fettling your bike in the back yard is dying out, unless you have a phd in auto electronics or an old bike,
not actually comparing just lumping things together