In 2001, Harley-Davidson launched the Fat Boy, a cruiser motorcycle that debuted in 1990, known for its distinctive style, fat, muscular appearance, and powerful engine. From 1990 to 2017, the Fat Boy was known as the FLSTF, and from 2018, it was coded as FLFB and FLFBS.
Over its production time, the bike received several modifications, including a redesigned exhaust system, revised master cylinder and switch gear, a new engine beginning with the 2000 model year, a modified frame, a revised suspension, and a redesigned rear fender.
The bike was built on a tubular steel frame, fitted with a 41 mm telescopic fork on the front that offered 130 mm wheel travel. The rear end was operated by a horizontal-mounted hidden shock absorber with 109 mm wheel travel.
The braking system remained unchanged, with a four-piston caliper and a 292 mm disc mounted on the front wheel and a 292 mm disc with a four-piston caliper on the rear wheel, providing excellent stopping power.
As for appearance, the 2001 Harley-Davidson Fat Boy packed a large round headlight with a chromed housing, a wide seat, and handlebar, a black-powder engine with chromed head covers and fins, a teardrop-shaped fuel tank, valanced fenders, and full disc wheels.
The bike took its muscles from a 1,450cc four-stroke V-twin air-cooled engine that delivered an output power of 67 hp with a peak at 5,200 rpm and 117 nm (86 lb-ft) torque at 3,500 rpm.