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Harley-Davidson FLSTF Fat Boy

Manufacturer	Harley-Davidson
Production	Since 1990
Engine	1,340 cc (82 cu in) – 1,584 cc (96.7 cu in) Twin-Cam V-Twin
Transmission	Chain (Primary) / Belt (final drive)
Wheelbase	1,636 mm (64.4 in)

The Harley-Davidson FLSTF Fat Boy is a V-twin motorcycle and one of the best selling models produced by Harley-Davidson.

Designed by Willie G Davidson and Louie Netz, their prototype Fat Boy was built for the Daytona Bike Week rally in Daytona Beach in 1989 The Fat Boy is unusual for having solid-cast disc wheels

Softail frame

The frame used on the Fat Boy originated with the 1984 Softail which appears like a rigid chassis but has hidden springs. Engineer Bill Davis began experimenting with the idea and was originally turned down by Harley-Davidson, who later bought the rights and redesigned the frame in-house.

Development

In 1994 that the exhaust was changed to a seamless type and the master cylinder and switch gear were improved in 1996. A new twin cam 1450cc engine was introduced in 1999 and in 2002 bullet-style indicators were added with an alarm and immobiliser.

The 15th anniversary in 2005 was marked with a custom version for one year only with custom paint options, custom wheels, screaming eagle engine and added accessories.

In 2006 the engine was upgraded to a larger twin cam 1584cc model and a six speed gearbox.

The Fat Boy Lo FLSTFB

The Fat Boy Lo introduced in 2010 featured the lowest seat height on any Harley motorcycle.

Media appearances

The Fat Boy is featured in the movies Terminator 2 and Terminator: Genisys. The motorcycle used in Terminator 2 is currently on display at the Harley-Davidson Museum. The Fat Boy has also appeared in Sons of Anarchy, Wild Hogs and CSI: Miami as well as numerous other films and TV productions.