Don't take this the wrong way. I didn't know that these kinds of bikes existed outside of the circus. When I Googled Dahon I was amazed at the range of models that they produce. Very interesting! Having ridden the commuter train now and again I've watched people wrestle their full size bikes onto the hanging bike racks, not to mention trying to get on or off the train with the bike when it's standing room only. The folding bike makes perfect sense.