Motorcycle handle bar switch with ON and OFF button

A motorcycle handlebar switch is a set of controls mounted on the handlebars to operate various functions, like the horn, turn signals, and lights, allowing the rider to control the motorcycle safely without removing their hands from the grips. These switches are usually grouped into a left and right unit, with the left handling indicators, horn, and high/low beams, and the right controlling the engine's ignition, stop switch, and sometimes headlights. They are made from durable, weather-resistant materials like plastic and metal and are designed for easy installation, although wiring modifications may sometimes be necessary. 

Components and Functions

Motorcycle handlebar switches are typically organized into two main units: 

Left Handlebar Switch Unit:

Turn Signal Control: Allows the rider to signal turns.

Horn Button: Activates the motorcycle's horn.

High/Low Beam Headlight Switch: Toggles between high and low beams.

Pass Light Button: A button to activate the high beam temporarily for quick passing maneuvers.

Right Handlebar Switch Unit:

Ignition Switch: Controls the motorcycle's engine on/off function.

Stop Switch: Can be used to immediately stop the engine in emergencies.

Headlight Control: May include a switch to turn the headlight on and off.