The Harley-Davidson Fat Boy was a cruiser machine built by the American motorcycle manufacturer since 1990. Over its production period, the bike underwent several design and technical modifications.
In 2007, H-D launched a wholly revised Harley-Davidson Fat Boy, which grows bigger, broader, and brighter for 2007. One of the most important updates of the Fat Boy was the increased displacement from 1,450cc to 1,584cc that brought more power and torque, an Electronic Sequential Port Fuel Injection (ESPFI) system, and a six-speed Cruise Drive gearbox.
In addition to its performance enhancements, the bike also featured a new 200 mm wide rear wheel, a chopper FL rear fender, a new internally wired handlebar, a new dual seat with bullet-laced valance, a traditional Fat Bob fuel tank with a triple bullet tank strap, and a Fat FL fork with a custom front fender.
Other improvements included a chrome horseshoe oil tank, full-length floorboards with the heel-toe shift lever, a new chrome front fork nacelle, a custom matching graphics package on the front fender, fuel tank, and rear fender, and new silver bullet hole aluminum disc wheels.
The 2007 Harley-Davidson Fat Boy was powered by a 1,584cc air-cooled V-twin black-powder-coated engine with chrome accents and a fuel injection system, boasting more power and 122 Nm (90 lb-ft) torque with a maximum peak force at 2,750 rpm.