EcoVelo photographed three bikes from the side and then overlapped them, two at a time, to show the differences among the Soma Mini-Velo (20-inch wheels, non folding), Brompton (16-inch wheels, folding) and Rivendell Betty Foy (650B wheels, non folding).
The differences in wheelbase, reach from seat to handlebar and, of course, wheel size are immediately apparent.
EcoVelo’s overlapping photographic study here.
EcoVelo discusses the mini velo class of bicycles here.
