This recording features the exhaust of a Harley-Davidson Breakout, a large-displacement cruiser known for its low, muscular V-twin sound. Clips like this, labelled as part of a series of exhaust recordings, are commonly shared online by motorcycle fans and sound designers who want an authentic engine note rather than a synthesised effect. Because the Breakout has such a distinctive idle and rev, the sound is still picked up for video edits, memes about biker culture and projects that need a realistic motorcycle engine.