I have owned a Bike Friday New World Tourist. One of the owners of the company is a pilot and designed with aircraft in mind. They are defiantly not cheap, in fact you could nearly buy 3 or 4 medium quality bikes and leave at several destinations for their cost. They do fit in a Samsonite suitcase and come equipped with nice quality Shimano components, mine was Ultegra equipped. While it was solid, rode well, decent geometry and rather light, 20" wheels gave it a rather harsh ride. The smaller wheels of a compact bike give it less step over ability and transmit more road variations directly to your body. It did have a shock absorbing seat post, which utilized elastomers to absorb shock, it didn't help my aging wrists a bit. So I sold it, for $2,800 I might add and bought a Scott Cylocross bike instead.
I made up this PVC rig to support the rear drops, chain and forks as a rigid flat unit. I used PVC and a fork mount and a Pedro's chain holder, along with a really cheap bike bag off ebay. I use the bag mainly to keep chain grease off my wife's stuff. Which was unfortunately slimed on the first trip I did with just the frame gizmo. So I got the bag and all is calm. If its just me, I clamp it on the tracks. I do use this in the car for trips as well, since any bike you hang on your car, if your gone for more that 120 seconds, is thief bait.
