Harley Davidson Fat Boy

The Fat Boy® is the original fat custom bike. It took its inspiration from the hardtail choppers of the swinging sixties and the glamorous seventies and had already established its icon status even before The Terminator took it for a spin in the much loved 80’s movie. Fat front forks, solid cast disc wheels, wide bars and big chrome headlight contribute to its unmistakable profile but as you’d expect there’s more to a bike of this stature than meets the eye. Equipped as it is with all the latest H-D developments such as an improved braking system for 2015 and our finely honed 1690cc engine.

Photo Credits: Courtesy of Harley Davidson

The legendary Fat Boy® motorcycle defined the “fat custom” category and imitators everywhere tried to copy its magic. But this original continues to turn heads wherever it rolls, with fat tires, fat bars, a fat fender and a big, powerful, black powder-coated, counter-balanced Twin Cam 103B™ engine. The Fat Boy® model is the very definition of a heavyweight motorcycle, delivering a bold styling statement and a wide, comfortable riding stance.

Standard Anti-lock Braking System and Smart Security System option deliver the most advanced technology in a way that only Harley-Davidson can deliver.

-6-Speed Cruise Drive® Transmission

-Horseshoe oil tank

-Five-gallon fuel tank

-Optional Smart Security System with proximity- based, hands-free security fob

-Optional Engine Idle Temperature Management Strategy (EITMS) (Dealer activated option)

 

Model Highlights

NEW Braking system

– New handlebar master cylinder and front caliper

– New high-stiffness 4-piston fixed caliper with larger pistons and premium piston coating

– Larger 300 mm rotor with higher effective radius

NEW Paint color options including Custom color

• Standard Anti-lock Braking System (ABS)

• Rigid-mounted, counter-balanced Twin Cam 103B™ V-Twin engine with Electronic Sequential Port Fuel Injection (ESPFI)

• Low profile, 1.25-inch internally-wired handlebar

• Hand controls with fewer wires

• Odometer trip switch

• Single button hazzard warning

• Large odometer readout with gear and RPM display

• Fuel tank sender for accurate fuel-level readings

• Black powder-coated powertrain with chrome covers

• Chrome over/under shotgun exhaust

• Mirror Chrome Aluminum Bullet Hole Disc wheels

• 200 mm rear tire

• Chrome front fork nacelle

• Chrome nostalgic seven-inch ball headlamp

• Chrome oil tank

• Chrome tank console with electronic speedometer

• Chrome bullet-studded seat valance and tank strap

• Chrome 1.25-inch, internally-wired handlebar and Bare Knuckle risers

• Full-size rider footboards

• Two-piece, two-up Softail® seat with removable pillion

• Custom trimmed front fender

 

 

Source: Harley Davidson

Technical Specifications Harley Davidson Fat Boy
Engine
Type Twin Cam 103B - Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters; two valves per cylinder
Displacement 1690 cc
Bore x Stroke 98.4 mm x 111.1 mm
Compression Ratio 9.6:1
Maximum Power 58 KW (78,86 HP) @ 5250RPM
Maximum Torque 132 NM (13,46 KGF.M) @ 3000RPM
Cooling System Air-cooled
Lubrication System Pressurized, dry-sump
Fuel Supply System Electronic Sequential Port Fuel Injection (ESPFI)
Starter System Electric (1.2 kW electric with solenoid shift starter motor engagement)
Transmission Type 6-Speed Cruise Drive®
Final Transmission System Belt Drive (32/66 ratio)
Clutch Type Multi-plate, wet
Chassis
Frame Mild steel tubular frame; rectangular section backbone; stamped, cast, and forged junctions; forged fender supports; MIG welded / Swingarm: Mild steel, round tube sections, forged junctions; MIG welded
Caster Angle 31°
Trail 147 mm
Front Suspension Front Forks 41.3 mm telescopic, “beer can” covers
Front Wheel Travel 130 mm
Rear Suspension Hidden, horizontal-mounted, coil-over
Rear Wheel Travel 109 mm
Front Break Split 7-spoke floating rotor, 300 mm x 5 mm, 4-piston Caliper
Rear Break Uniform expansion solid rotor, 292 mm x 5.8 mm, 2-piston rear Caliper
Front Tyre 17”/Dunlop D408F 140 mm
Rear Tyre 17”/Dunlop D407 200 mm
Dimensions
Overall Length 2396 mm
Overall Width 990 mm
Overall Height 1095 mm
Seat Height 690 mm
Wheelbase 1635 mm
Min. ground clearance 130 mm
Kerb Weight 329 kg
Fuel Capacity 18,9 Liters

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