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    2018 Harley-Davidson ® Fat Boy

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    Engine

    Milwaukee-Eight® 107 or 114

    Engine Torque

    109 ft-lb

    Weight, As Shipped

    670 lb.

    Seat Height, Laden

    25.9 in.

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    Fat Boy

    The original fat custom icon that changed it all has done it again. Satin chrome finishes. Beefy 240mm rear tire. And now available in a Milwaukee-Eight® 107 or 114 Big Twin Engine for the most muscular, unstoppable Fat Boy® motorcycle ever.

    Satin Chrome Finishes

    An all-you-can eat portion of sculpted satin chrome gives the Fat Boy® a look that’ll make a big impact.

    Steamroller Stance

    A muscular look thanks to all-new solid-disc Lakester wheels wrapped in the widest front tire we’ve ever offered from the factory at 160mm combined with a 240mm rear tire.

    Milwaukee-Eight® Big Twin Engine

    A powerful, smooth-running engine with crisp throttle response and a pure, soul-satisfying rumble. Available in 107 and 114 engine displacements.

    Signature LED Forward Lighting

    Darkness-defying lighting that gives you greater visibility at night.

    All-New Softail® Frame

    A lighter, stiffer frame (compared to the prior Softail® and Dyna® models) that takes the idea of form and function to a place it’s never been before. It’s the look of a hard tail from a bygone era that delivers a thoroughly modern ride.

    High Performance Front Suspension

    New suspension technology provides the performance of a racing-style cartridge fork for reduced weight with linear damping characteristics.

    High Performance Rear Mono Shock

    All-new easily adjustable mono-shock rear suspension allows for dynamic cornering capability while preserving the hardtail look.

    Fat Boy

    Vivid Black$18,999 Color$19,399
    Two-tone$19,749 ABS OptionStandard
    Security System OptionStandard California Emissions$200
    Freight$390
    Engine TypeMilwaukee-Eight® 107 Bore3.937 in.
    Stroke4.374 in. Displacement107 cu in
    Compression Ratio10.0:1 Fuel SystemElectronic Sequential Port Fuel Injection (ESPFI)
    Exhaust2-into-2 Staggered; Catalyst In Header
    Length93.3 in. Seat Height, Laden25.9 in.
    Seat Height, Unladen26.6 in. Ground Clearance4.5 in.
    Rake (Steering Head)30 ° Trail4.1 in.
    Wheelbase65.6 in. Tires, Front Specification160/60r18,70v,Bw
    Tires, Rear Specification240/40r18,79v,Bw Fuel Capacity5 gal.
    Oil Capacity (W/Filter)5 qa. Weight, As Shipped670 lb.
    Weight, In Running Order699 lb.
    Engine Torque Testing MethodJ1349 Engine Torque109 ft-lb
    Engine Torque (RPM)3,000 Lean Angle, Right25.6 °
    Lean Angle, Left25.6 ° Fuel Economy: Estimated City/Hwy47 mpg
    Primary DriveChain, 34/46 Ratio Gear Ratios (Overall) 1st9.311
    Gear Ratios (Overall) 2nd6.454 Gear Ratios (Overall) 3rd4.793
    Gear Ratios (Overall) 4th3.882 Gear Ratios (Overall) 5th3.307
    Gear Ratios (Overall) 6th2.79
    Wheels, Front TypeMachined, Lakester Cast Aluminum Wheels, Rear TypeMachined, Lakester Cast Aluminum
    Brakes, Caliper Type4-piston Fixed Front And 2-piston Floating Rear
    Lights (As Per Country Regulation), Indicator LampsHigh Beam, Turn Signals, Neutral, Low Oil Pressure, Engine Diagnostics, ABS, Security, Low Battery Voltage, Low Fuel Gauges5 Inch Analog Speedometer With Digital Gear, Odometer, Fuel Level, Clock, Trip, Range And Tachometer Indication

    *This color is only available with the Milwaukee-Eight® 114 engine.

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