The term refers to an aftermarket suspension system designed for Harley-Davidson Road King motorcycles, utilizing compressed air to control the ride height and damping characteristics. This system replaces or supplements the factory suspension components, offering adjustability not typically found in the stock configuration. These systems are commonly found on motorcycles intended for cruising or customization, as they offer a wider range of comfort and aesthetic options.
The integration of such a system offers several advantages. The ability to adjust ride height can improve rider comfort by allowing customization of the suspension to suit varying road conditions or rider preferences. It provides an avenue for altering the motorcycle’s stance for visual appeal. Historically, these systems were initially adopted for their functional benefits, but have since become a popular customization element. The result is a motorcycle that offers both enhanced performance and personalized aesthetics.