N+1

Equation for the recommended number of bicycles one should own. N stands for the current number of bicycles a person owns. Thus, a person should always get one more bicycle because there's always a nicer and more appealing one available.

A related term to this is S-1

Reference
The term N+1 comes from Velominati Rule #12 which states "The correct number of bikes to own is n+1." In mathematical equations, variables are written in lowercase, so N+1 is usually written as n+1

Forum Introduction

 * Opinions on the Surly Cross Check? http://bikearlingtonforum.com/showthread.php?p=4025#post4025

Links

 * Velominati - The Rules http://www.velominati.com/the-rules/#12