Typical folders default to a cramped, upright riding position. Not only does this make extended rides uncomfortable (most of the rider weight over the bum and lower back), but the uneven weight distribution over the bike makes for very poor aerodynamics and handling, and an unweighted front-wheel that washes-out easily. I have drop bars and a pretty good roadie-style stretch on my Swift.The bike handles and cuts through the wind beautifully. My Dahon, on the otherhand, has the typical Dahon-ish cramped, upright riding position. Not only does my upper body catch the wind like a sail, but the unweighted front wheel has repeatedly washed-out from under me several times, causing me to crash (embarassingly) once. I also get a sore bum and lower back on rides longer than 6 miles. It also handles like crap.