Please forgive an ignorant limey pushing in to this interminable correspondence, but didn't 'mojo' originally mean heroin? In other words, something addictive and overpriced. Those of us with more modest bicycles have a pretty good idea of what those machines would be. Stuart Tallack in Sussex "The price of bicycles has been greatly reduced since the 'boom', when people paid anything up to £30 for a high class machine. Today fifteen guineas will buy an even better article." (How it is Made 1909)