The Harley-Davidson FLSTFI Fat Boy is the fuel-injected version of Harley's Fat Boy. It uses an air-cooled Twin Cam 88B V-twin of about 1,450cc, counterbalanced for smoothness.
Its solid wheels and wide stance made it an icon. It suits riders who want a classic big Harley. Rivals included the Honda VTX1800 and Yamaha Road Star.