This folding bike from Tern is ideal for city dwellers. At just 21 pounds, it's light enough to lug up a flight of stairs. When folded, it's about the size of a carry-on bag -- easily fitting into tiny apartments or taxi trunks.
The lightweight, compact size and 10 gears will set you back about $1,800.
The company, founded year and half ago, has seen growth rates of 20% to 30% despite the generally lackluster economy.