Harley Davidson FLSTFB Softail Fat Boy Lo Special (2013)

Harley Davidson FLSTFB Softail Fat Boy Lo Special (2013)

The Harley-Davidson FLSTFB Softail Fat Boy Lo Special is a masterclass in understated power and unapologetic attitude. At its heart lies the potent Twin Cam 103B V-Twin engine, fed by Electronic Sequential Port Fuel Injection (ESPFI) for effortless acceleration.

Its custom design language is unmistakable – think slammed appearance, blacked-out covers, and satin chrome accents where mirror chrome would normally reside. A low-slung seat, forward foot controls, and short handlebar conspire to create a secure, cruising-focused stance.

With the addition of anti-lock brakes in the Security Package option, this Fat Boy Lo variant solidifies its position at the forefront of the boulevard cruiser pack.

Key Specifications

Engine TypeFour stroke, V-Twin, Twin Cam 103 Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters; two valves per cylinder, with Integrated Oil-Cooler
Engine Capacity103.1 cubic inches / 1690 cc
Max Torque132 Nm / 98.8 ft. lbs @ 3250 rpm
Fuel Tank Capacity18.9 Litres / 5 gal
Weight (Wet/Kerb)731 lbs / 330 kg
Seat Height24.3 inches / 616 mm
Harley Davidson FLSTFB Softail Fat Boy Lo Special (2013)

All Specifications

Make & Model

ModelHarley Davidson FLSTFB Softail Fat Boy Lo Special
Year2013

Engine

Engine TypeFour stroke, V-Twin, Twin Cam 103 Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters; two valves per cylinder, with Integrated Oil-Cooler
Displacement103.1 cubic inches / 1690 cc
Bore x Stroke98.4 x 111.1 mm
Compression Ratio9.6:1
Max Torque132 Nm / 98.8 ft. lbs @ 3250 rpm
Engine Management SystemElectronic Sequential Port Fuel Injection (ESPFI)
Cooling SystemAir cooled

Performance

Top Speedn/a

Transmission

ClutchMulti-plate, wet
Gearbox6 Speed
Gear Ratios1st 9.311 / 2nd 6.454 / 3rd 4.793 / 4th 3.882 / 5th 3.307 / 6th 2.790
Final DriveBelt

Electrical & Electronics System

StarterElectric

Chassis & Suspension

Frame TypeMild steel, tubular frame; rectangular section backbone; stamped, cast and forged junctions, forged fender supports; MIG welded
Front Suspension41.3 mm telescopic, chrome dust covers
Rear SuspensionHidden, horizontal-mounted, coil-over shock
Trail147 mm / 5.7 in

Wheels & Brakes

Front Tire Size140/75R17 67V
Rear Tire Size200/55R17 78V
Front BrakesSingle 292mm disc 4 piston caliper
Rear BrakesSingle 292mm disc 4 piston caliper

Dimension & Weights

Seat Height24.3 inches / 616 mm
Wheelbase67.5 inches / 1715 mm
Fuel Tank Capacity18.9 Litres / 5 gal
Wet (kerb/curb) Weight731 lbs / 330 kg
Dry Weight317.5 kg / 700 lbs

Features

  • Slammed appearance
  • Custom, black bullet hole wheels
  • Denim black frame
  • Blacked-out covers and header shields
  • Satin chrome in place of mirror chrome
  • Slammed, narrow-cut seat
  • 24.25-inches seat height
  • Forward foot controls
  • Low, 1.25-inch handlebar
  • Anti-lock brakes (Security Package option)
  • Rigid-mounted, counter-balanced Twin Cam 103B V-Twin engine
  • Electronic Sequential Port Fuel Injection (ESPFI)
  • Leather tank panel with Harley-Davidson medallion
  • Satin-chrome tank console and side badges
  • Gloss Black triple clamp covers and nacelle
  • Over/under shotgun exhaust with satin-chrome mufflers and flat-black header shields
  • Half-moon black rider floorboards
  • Rolled edge front fender
  • Full-coverage rear fender
  • 6-speed Cruise Drive Transmission
  • Horseshoe oil tank
  • Five-gallon fuel tank
Harley Davidson FLSTFB Softail Fat Boy Lo Special (2013)

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