n+1

A phrase most commonly used by the bicycling community, n+1 refers to the amount of a thing one should own, a thing which they are obsessed with and brings joy.

The correct number of bikes to own is n+1. While the minimum number of bikes one should own is three, the correct number is n+1, where n is the number of bikes currently owned.

The equation n+1 can also be used to describe pizza, beer, puppies, or even autographed baseball cards.

John B: "I'm really considering buying a road bike to go a bit faster and have in addition to my townie and mountain bike, but don't know if that would be too many bikes."

Nate C: "N+1 my friend, go buy that bike!"