rhm

Strida is easy to roll around because it is long when folded; the stem becomes a handle, and you can push it in front of yourself very conveniently, even while running to catch a train or something. If I keep the seat extended, I can roll my Downtube Mini pretty much the same way, but it has to be tilted to one side so it rolls on the front wheel. Mobiky is designed to roll around on two wheels, but it's hard to roll it fast that way. Raleigh Twenty is hard to roll when folded. Dunno about the others.