What category is the 2015 Harley-Davidson Softail Fat Boy Lo?

The 2015 Harley-Davidson Softail Fat Boy Lo has a Category of Custom / cruiser.

What type of engine does the 2015 Harley-Davidson Softail Fat Boy Lo have?

The 2015 Harley-Davidson Softail Fat Boy Lo has a Engine type of V2, four-stroke.

What is the torque of the 2015 Harley-Davidson Softail Fat Boy Lo?

The 2015 Harley-Davidson Softail Fat Boy Lo has a Torque of 132.00 Nm (13.5 kgf-m or 97.4 ft.lbs) @ 3000 RPM.

Is the 2015 Harley-Davidson Softail Fat Boy Lo air cooled or liquid cooled?

The 2015 Harley-Davidson Softail Fat Boy Lo has a Cooling system of Air.

How many gears does the 2015 Harley-Davidson Softail Fat Boy Lo have?

The 2015 Harley-Davidson Softail Fat Boy Lo has a Gearbox of 6-speed.

What is the fuel consumption of the 2015 Harley-Davidson Softail Fat Boy Lo?

The 2015 Harley-Davidson Softail Fat Boy Lo has a Fuel consumption of 5.60 litres/100 km (17.9 km/l or 42.00 mpg).

How much does the 2015 Harley-Davidson Softail Fat Boy Lo weigh?

The 2015 Harley-Davidson Softail Fat Boy Lo has a Dry weight of 313.0 kg (690.0 pounds).

How much does the 2015 Harley-Davidson Softail Fat Boy Lo weigh?

The 2015 Harley-Davidson Softail Fat Boy Lo has a Weight incl. oil, gas, etc of 330.2 kg (728.0 pounds).

What is the seat height of the 2015 Harley-Davidson Softail Fat Boy Lo?

The 2015 Harley-Davidson Softail Fat Boy Lo has a Seat height of 616 mm (24.3 inches) If adjustable, lowest setting..

Harley-Davidson Softail Fat Boy Lo - 2015 Specifications and Reviews

Name: 2015 Harley-Davidson Softail Fat Boy Lo
Brand: Harley-Davidson

The 2015 Harley-Davidson Softail Fat Boy Lo is a cruiser designed for riders seeking classic styling with a low-slung riding position and aggressive stance. Known for its iconic design, fat tires, and accessible seat height, it delivers the quintessential American cruiser experience with modern reliability and electronic features. Perfect for both highway cruising and commanding presence in any setting.

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2015

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General information
Category	Custom / cruiser
Year	2015
Model	Harley-Davidson Softail Fat Boy Lo

Engine and Transmission Specifications
Exhaust system	Denim Black and Satin Chrome, over/under shotgun exhaust with dual mufflers
Greenhouse gases	129.9 CO2 g/km. (CO2 - Carbon dioxide emission)
Fuel consumption	5.60 litres/100 km (17.9 km/l or 42.00 mpg)
Driveline	Primary chain, 34/46 ratio
Clutch	Multi-plate with diaphragm spring in oil bath
Transmission type,final drive	Belt
Gearbox	6-speed
Cooling system	Air
Fuel system	Injection. Electronic Sequential Port Fuel Injection (ESPFI)
Bore x Stroke	98.4 x 111.3 mm (3.9 x 4.4 inches)
Compression	9.6:1
Torque	132.00 Nm (13.5 kgf-m or 97.4 ft.lbs) @ 3000 RPM
Engine details	Air-cooled, Twin Cam 103B™
Engine type	V2, four-stroke
Brakes, suspension, Frame and wheels
Wheels	Black, Bullet Hole Disc Cast Aluminum
Rear brakes	Single disc. 2-piston
Front brakes	Double disc. 4-piston. ABS.
Rear tyre	200/55-R17
Front tyre	140/75-R17
Trail	147 mm (5.8 inches)
Rake (fork angle)	31.6°

Physical measures and capacities
Oil capacity	3.30 litres (0.22 quarts)
Fuel capacity	18.93 litres (5.00 gallons)
Wheelbase	1,638 mm (64.5 inches)
Ground clearance	122 mm (4.8 inches)
Overall length	2,395 mm (94.3 inches)
Seat height	616 mm (24.3 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc	330.2 kg (728.0 pounds)
Dry weight	313.0 kg (690.0 pounds)
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay
Light	High beam, neutral, low oil pressure, turn signals, engine diagnostics, security system (optional), 6-speed, low fuel warnings
Instruments	Tank-mounted electronic speedometer with odometer, time-of-day clock on odometer, dual tripmeter, RPM/gear display, fuel gauge with low fuel warning light and countdown feature, low oil pressure indicator light, engine diagnostics readout, LED indicator lights, 6-speed indicator light
Starter	Electric
Color options	Charcoal Pearl, Radioactive Green, Sand Cammo Denim, Black Denim, Vivid Black

Performance Profile & Rider Fit

5.8s

0-60 mph (est.)

Best For

Track10%

City55%

Cornering35%

Daily Riding55%

Touring45%

Passenger40%

Rider Profile

Best For	Suited to riders who are comfortable with a heavy, low-slung cruiser and confident handling significant weight at low speeds.
Purpose	Built for relaxed boulevard cruising and image-driven riding rather than outright performance or long-distance touring.
Rider Fit	The low 616mm seat height and low center of gravity make it accessible to shorter riders, though the 333kg wet weight demands strength when maneuvering at a standstill or on uneven ground.
Character	A classic fat-tired Harley cruiser that delivers strong low-end torque, a deep V-twin rumble, and unmistakable custom styling over outright speed or agility.
Not Ideal For	Not a good fit for riders seeking sharp cornering ability, off-road capability, or a nimble, lightweight machine for tight urban lane-splitting.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2015 Harley-Davidson Softail Fat Boy Lo Rider Ergonomics Assessment

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Feet:

At 616mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2015 Harley-Davidson Softail Fat Boy Lo, with a cramped knee angle of around 65 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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