The Schwinn cruiser I figure is a 1982 model, 27 years old, based on it's serial number. It was a yard sale find.
The Seven Axiom is 10 years old. 1999 frame, rebuilt in 2005.
The Klein Palomino is 6 years old....as old as my marraige, as we got a pair of them as wedding presents to each other.
The Felt commuter is 4 years old this spring.
The Seven ID8 is the baby of the group: just 1.5 years young.