Cruisers

2017Harley-Davidson Softail Fat Boy Lo

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The 2017 Harley-Davidson Softail Fat Boy Lo is a cruiser designed for riders seeking classic styling with modern performance. Known for its low-slung stance, generous 24.3-inch seat height, and iconic fat tire aesthetic, this bike excels in delivering aggressive presence on city streets and highways. Its 6-speed transmission and dual-disc brakes with ABS provide dependable handling for casual to intermediate riders.

Capacity: 1688.0 ccm
Engine: V-Twin, four-stroke
Gearbox: 6-speed
Dry weight: 320.0 kg
Seat height: 616 mm
Power: 103.0 HP (75.8 kW)

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What’s new for the 2017 Harley-Davidson Softail Fat Boy Lo

vs the 2016

Spec	2016	2017
Torque	132.0 Nm (13.5 kgf-m or 97.4 ft.lbs) @ 3000 RPM	136.0 Nm (13.9 kgf-m or 100.3 ft.lbs) @ 3000 RPM

Other years 2013 2014 2015 2016 2017

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail5%

Cornering35%

City riding55%

Daily riding55%

Touring45%

Two-up40%

Track10%

Best for: Built for relaxed boulevard cruising and image-driven riding rather than outright performance or long-distance touring.
Built for: 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.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

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Your height

Inseam (optional)

Units

At 616mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2017 Harley-Davidson Softail Fat Boy Lo, with a cramped knee angle of around 65 degrees and an upright riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 750 mm or under — Short Kings →

Find bikes that fit your height →

Range and running costs

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Units

Currency

Fuel per litre

Riding a year

Based on the maker's published fuel consumption and tank size. Real-world figures depend on how and where you ride, and the last litres of a tank are reserve. Prices shown greyed are examples - type your own.

Full specifications

Engine

Capacity: 1688.0 ccm
Power: 103.0 HP (75.8 kW)
CO2 Emissions: 130 CO2 g/km
Torque: 136.0 Nm (13.9 kgf-m) @ 3000 RPM
Engine type: V-Twin, four-stroke
Fuel consumption: 5.60 litres/100 km (17.9 km/l)
Power/weight ratio: 0.3219 HP/kg (dry)
Bore x stroke: 98.4 x 111.3 mm
Compression: 9.6:1
Cooling system: Air
Fuel system: Injection
Starting: Electric

Transmission

Gearbox: 6-speed
Transmission type: Manual
Final drive: Belt
Clutch: Multi-plate with diaphragm spring in oil bath

Dimensions & weight

Wheelbase: 1638 mm
Overall length: 2395 mm
Seat height: 616 mm
Dry weight: 320.0 kg
Wet weight: 333.0 kg
Fuel capacity: 18.90 litres
Ground clearance: 122 mm
Oil capacity: 3.30 litres

Chassis & suspension

Front suspension: Telescopic fork
Rear suspension: Twin shocks
Rake (fork angle): 31.6°
Trail: 147 mm

Brakes & wheels

Front brakes: Double disc. 4-piston. ABS.
Rear brakes: Single disc. 2-piston. ABS.
ABS: Yes
Front tyre: 140/75-R17
Rear tyre: 200/55-R17

Other

Color options: Charcoal Denim, Red Iron Denim, Black Denim, Vivid Black, Crushed Ice Denim
Comments: Sold in some markets only.

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

What changed, year to year

Differences highlighted

Specification	2013	2014	2015	2016	2017
Capacity	1688 cc	1688 cc	1688 cc	1688 cc	1688 cc
Dry weight	313 kg	313 kg	313 kg	319 kg	320 kg
Seat height	616 mm	616 mm	616 mm	616 mm	616 mm
Fuel capacity	18.9 L	18.9 L	18.9 L	18.9 L	18.9 L