If your space is limited and you'd rather not awkwardly affix a big, clunky bike to one of your walls, look no further than Tern's Link C8, a roughly 28-pounder that folds into a compact size, so you can discreetly tuck it away.
For something even more budget-friendly, Keoshgerian recommends Tern’s entry-level models like this C8.
In terms of commute bikes, [the Link C8] is my fave. Its 20in wheels make it speedy and its eight gears handle hills.
The ride [...] is extremely impressive - smooth, comfortable and easy to handle, with eight (!) gears and 20" wheels.