Most collapsible bikes only break down to a point because of the spokes which don’t really lend to folding. This leaves you with something easier to transport when you’re not riding, but something far from ideal. The Sada Bike ditches spokes altogether to give you a more compact alternative. The bike, which is currently just a working prototype, has the dimensions of a standard bicycle (26″ wheels), but can fold up with a single movement. What you end up with is a bike you can toss in a backpack or a duffle bag when you’re not riding.