A motorcycle accessory is a device or item that can be added to a motorcycle to enhance its performance, safety, or convenience. Two common motorcycle accessories are sidecars and kickstands. A sidecar is a one-wheeled attachment to the side of a motorcycle, typically used to transport a passenger or cargo. A kickstand is a metal support that props up the motorcycle when it is not in use. Both sidecars and kickstands are essential for safe and convenient motorcycle operation.