# Leaning ( for bikes and motorcycles)

## Description

Bikes must lean during a turn to balance the relevant forces: gravitational, inertial, frictional, and ground support. The angle of lean can be calculated using the laws of circular motion.

Related formulas## Variables

θ | Angle of lean (radians) |

v | The forward speed (m/s) |

g | Standard gravity |

r | Radius of the turn (m) |