I won't speak ill of the '70s Schwinn Suburban -- I had one once and really enjoyed it, until it got stolen -- but in this case we're not interested in a derailleur setup. Dress pants and shoes, you see. It'd need to be either a belt drive (which we now have on both the Priority and the Douze) or an internally-geared hub with a Hebie Chainglider (which is what we use on our own, size-specific city bikes).