I bought a Dahon Classic folding bike off craigslist. This was sort of a quick checkout ride. It needs a good going-over, but today I learned specifically that it needs the front and rear fenders tightened, the rear wheel moved back to tighten the chain, and the 3-speed Sturmey-Archer hub shifting adjusted. It seems to only have 2 gears and the middle shift position results in a neutral effect, like it's disconnected. I read about this Friday, but I need to go find that link again now that I know mine is afflicted.
Video of folding (not the best, but shows the bike). Mine's red. And at least 2 people have called it a clown bike. It wants to wheelie, except the stupid bumper drags so you can't. (And I actually bought 2 of them, but the other might be spoken for...)
I've really wanted a folding bike, and I thought this would be a good way to try it out to see if I use it enough to justify spending real money on a nice one. It takes about as long to assemble as taking a bike off the roof and attaching the tire, so it's not bad. Gearing seems a little high, but it might be the adjustment, and if not that, then there are some cog-changing possibilities. It's great on the flat.
GPS track only shows about half the ride---I hit the wrong button. Twice.