The Harley-Davidson Fat Boy was a cruiser motorcycle introduced by H-D in 1990. The bikes produced between 1990 and 2017 were coded as FLSTF, and the ones manufactured from 2018 were coded as FLFB and FLBFS.
In 1988 and 1999, Harley-Davidson manufactured a Fat Boy prototype in Milwaukee for the Daytona Bike Week rally at Daytona Beach, designed by the H-D's styling director, Willie G. Davidson, and Louie Netz.
In 1996, the American motorcycle manufacturer launched the Harley-Davidson Fat Boy, a cruiser machine that featured only minor modifications over the years, including the seamless exhaust system and revised master cylinder and switchgear.
For appearance, the bike was practically unchanged from previous models, with its teardrop-shaped fuel tank, wide handlebar, dual exhaust system, solid disc wheels, wide dual seat, and round headlight with a chromed housing.
As for performance, the 1996 Harley-Davidson Fat Boy was powered by the same 1,337cc four-stroke V-twin air-cooled engine as its predecessors, delivering an output power of 67 hp at 6,000 rpm and 97 Nm (72 lb-ft) torque at 2,350 rpm.
The brakes and suspension were carried over from previous models, featuring a 39 mm telescopic fork and a 292 mm disc with a four-piston caliper on the front wheel. The rear end was softened by dual concealed adjustable shock absorbers and stopped by a 292 mm disc with a four-piston caliper.