Harley Davidson Softail Fat Boy (2015)

The Harley-Davidson Softail Fat Boy is an icon reborn, its rugged charm and unmistakable style unchanged since its inception in the 1990s.

Its powerful heartbeat is provided by the Twin Cam 103BTM engine, a counter-balanced V-Twin that pumps out raw power through Electronic Sequential Port Fuel Injection (ESPFI). This potent force is paired with a smooth-shifting 6-speed Cruise Drive Transmission and standard Anti-lock Braking System for confident stopping power.

Riding the Fat Boy is an experience unlike any other. The low profile, internally-wired handlebar and plush rider footboards provide ample control and comfort, while the generous fuel tank (5 gallons) ensures long stretches of uninterrupted cruising.

The result is a ride that’s both nostalgic and exhilarating, with each twist of the wrist sending the Fat Boy surging forward in a wave of black powder-coated powertrain, chrome accents, and rumbling exhaust.

Key Specifications

Engine Type	Four stroke, V-Twin, Twin Cam 103B Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters, two valves per cylinder, with Integrated Oil-Cooler
Engine Capacity	1690 cc / 103.1 cub in.
Max Torque	134 Nm / 13.7 kgf-m / 98.8 ft. lbs @ 3500 rpm
Fuel Tank Capacity	5.0 US gallons / 18.9 L
Weight (Wet/Kerb)	725 lbs / 329 kg
Seat Height	25.0 inches / 635 mm

*n/a – information not provided by manufacturer

All Specifications

Make & Model

Model	Harley Davidson Softail Fat Boy
Year	2015

Engine

Engine Type	Four stroke, V-Twin, Twin Cam 103B Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters, two valves per cylinder, with Integrated Oil-Cooler
Displacement	1690 cc / 103.1 cub in.
Bore x Stroke	98.4 x 111.1 mm
Compression Ratio	9.6:1
Max Torque	134 Nm / 13.7 kgf-m / 98.8 ft. lbs @ 3500 rpm
Engine Management System	Electronic Sequential Port Fuel Injection (ESPFI)
Cooling System	Air cooled
Exhaust	Chrome, over/under shotgun exhaust with dual mufflers

Performance

Top Speed

n/a

*n/a – information not provided by manufacturer

Transmission

Gearbox	6 Speed
Gear Ratios	1st 9.311 / 2nd 6.454 / 3rd 4.793 / 4th 3.882 / 5th 3.307 / 6th 2.79
Final Drive	Belt

Electrical & Electronics System

Starter

Electric

Chassis & Suspension

Frame Type	Mild steel, tubular frame; rectangular section backbone; stamped, cast and forged junctions, forged fender supports; MIG welded
Front Suspension	41.3 mm telescopic, chrome dust covers
Rear Suspension	Hidden, horizontal-mounted, coil-over shock
Trail	147 mm / 5.8 in

Wheels & Brakes

Wheels	Optional Style Type Mirror Polished Chrome, Bullet Hole Disc Cast Aluminum (front and rear)
Front Wheel/Rim Size	Silver, Bullet Hole Disc Cast Aluminum
Front Tire Size	140/75R17 67V
Rear Wheel/Rim Size	Silver, Bullet Hole Disc Cast Aluminum
Rear Tire Size	200/55R17 78V
Front Brakes	2x Discs 4 piston caliper
Rear Brakes	Single disc 2 piston caliper

Dimension & Weights

Seat Height	25.0 inches / 635 mm
Wheelbase	64.2 inches / 1635 mm
Fuel Tank Capacity	5.0 US gallons / 18.9 L
Wet (kerb/curb) Weight	725 lbs / 329 kg

Features

Electronic Sequential Port Fuel Injection (ESPFI)
Rigid-mounted, counter-balanced Twin Cam 103B V-Twin engine
Low profile, 1.25-inch internally-wired handlebar
Hand controls with fewer wires
Odometer trip switch
Single button hazard 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
Silver, Cast 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

*We strive to provide the most comprehensive and accurate specifications possible. However, certain details may not be available if the manufacturer did not disclose them or if the information is no longer publicly accessible. If you find any discrepancy with any data on this site, please feel free to let us know at contact@throttlecraze.com