Harley-Davidson FLSTFB Fat Boy Special - Specifications & Review

FLSTFB Fat Boy Special

Article Complete Info

Articleid358944
CategoryCustom-cruiser
MakeHarley-Davidson
ModelFLSTFB Fat Boy Special
Year2012

Chassis, Suspension, Brakes & Wheels

FrontbrakesDouble disc
Fronttyre140/75-R17
Rake31.6°
RearbrakesSingle disc
Reartyre200/55-R17
Trail147 mm (5.8 inches)
WheelsBlack, Bullet Hole Disc Cast Aluminum

Engine & Transmission

Borexstroke98.4 x 111.1 mm (3.9 x 4.4 inches)
ClutchMulti-plate with diaphragm spring in oil bath
Compression9.6:1
CoolingsystemAir
Displacement1690.00 ccm (103.12 cubic inches)
EnginedetailsV2, four-stroke
EnginetypeTwin Cam 103B™
FuelsystemInjection. Electronic Sequential Port Fuel Injection (ESPFI)
Gearbox6-speed
TransmissiontypefinaldriveBelt

Other Specifications

InstrumentsHigh beam, neutral, low oil pressure, turn signals, engine diagnostics, security system (optional), 6-speed, low fuel warnings
StarterElectric

Physical Measures & Capacities

Dryweight313.0 kg (690.0 pounds)
Fuelcapacity18.90 litres (4.99 gallons)
Groundclearance125 mm (4.9 inches)
Oilcapacity3.10 litres (0.20 quarts)
Overalllength2,390 mm (94.1 inches)
Weightincloilgasetc330.0 kg (727.5 pounds)

About Harley-Davidson

Country of Origin: United States
Founder: William S. Harley, Arthur Davidson, Walter Davidson, William A. Davidson
Best Known For: V-twin cruisers, touring icons, H-D culture; also LiveWire electric spinoff

Company History

Founded in Milwaukee in 1903, Harley-Davidson grew from backyard shed to global symbol. Early board-trackers and military machines proved durability; postwar big twins defined American road culture with a cadence and silhouette that became shorthand for freedom. The company professionalized long-distance comfort—Electra Glide fairings, air shocks, and later sophisticated infotainment—while keeping a mechanical identity built on a 45° V-twin heartbeat. Harley also navigated reinvention: the Evolution engine restored reliability in the 1980s; rubber mounting tamed vibes; and fuel injection, ABS, and ride-by-wire brought modernity. The brand’s culture—H.O.G. rides, dealer events, customization—turns ownership into community. Recent decades saw expansion into liquid-cooled performance (Revolution X) and true adventure/sport segments (Pan America, Sportster S), while LiveWire broke ground in electric motorcycling. Historically, Harley’s significance extends beyond machines: it’s a maker of rituals and myth, exporting an American idea of the open road. The tension between heritage and innovation defines each new model year, but the throughline is tactile connection—torque-rich roll-on, slow idle, and a sense that the bike has a pulse.

Other Years

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