Stow and Go
The GOTHAM1 from Citizen Bike is a lightweight, no-frills ride that is easy to use and easy to stow. This is a one-speed bike that rides on 20in tires and is designed to get you where you need to go (within reason—this bike is not for mountain bike trails). The alloy frame and high-end, alloy components keep the bike to a featherweight 26lb. Folded up, it measures just 33.5in by 25in by 13.5in.
$299. Citizen Bike, citizenbike.com