The Harley-Davidson Softail Fat Boy Lo motorcycle specifications include a 1,688 cc (103.00 cu in) engine, a 6-speed gearbox, and a listed weight of 330.2 kg (728 lb).
Key specifications
The 2013 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
How the Harley-Davidson Softail Fat Boy Lo compares
This compares the motorcycle with all Harley-Davidson models in this specifications database. The blue marker is this model and the grey line is the Harley-Davidson database average.
About 32% higher than the Harley-Davidson database average. Around the 85th percentile across Harley-Davidson models.
About 6% heavier than the Harley-Davidson database average. Around the 65th percentile across Harley-Davidson models.
About 11% lower than the Harley-Davidson database average. Around the 1st percentile across Harley-Davidson models.
About 11% larger than the Harley-Davidson database average. Around the 69th percentile across Harley-Davidson models.
Harley-Davidson database percentile rankings
Percentiles show where this motorcycle sits across the Harley-Davidson specifications database. They are descriptive database rankings, not performance ratings.
1,688 cc — larger displacement than about 85% of Harley-Davidson models.
330.2 kg — heavier than about 65% of Harley-Davidson models, or lighter than about 35%.
616 mm — taller than about 1% of Harley-Davidson models.
18.9 L — larger than about 69% of Harley-Davidson fuel tanks in this database.
Dimensions compared with Harley-Davidson average
Each measurement is compared with the average value across Harley-Davidson models where that dimension is available.
2,395
2,376
Close to average.
1,638
1,599
Close to average.
616
689
11% below average.
122
128
5% below average.
Mechanical overview
Additional useful specifications
| Front tire size | 140/75-R17 |
|---|---|
| Rear tire size | 200/55-R17 |
| Engine oil capacity | 3.30 L (3.49 US qt) |
| Estimated theoretical fuel range | 338 km |
| Bore/stroke ratio | 0.88:1 (Undersquare) |
Engine specifications
| Engine type | V2, four-stroke |
|---|---|
| Displacement | 1,688 cc (103.00 cu in) |
| Torque | 133.8 Nm (13.6 kgf-m or 98.7 ft.lbs) @ 3,000 rpm |
| Bore × stroke | 98.4 x 111.3 mm (3.9 x 4.4 inches) |
| Compression ratio | 9.6:1 |
| Cooling system | Air |
| Fuel system | Injection. Electronic Sequential Port Fuel Injection (ESPFI) |
| Starter | Electric |
| Oil capacity | 3.30 L (3.49 US qt) |
Transmission and drivetrain
| Gearbox | 6-speed |
|---|---|
| Final drive | Belt (final drive) |
| Clutch | Multi-plate with diaphragm spring in oil bath |
Chassis and suspension
| Rake | 31.6° |
|---|---|
| Trail | 147 mm (5.8 inches) |
Brakes, wheels and tires
| Front brakes | Double disc. 4-piston |
|---|---|
| Rear brakes | Single disc. 2-piston |
| Front tire | 140/75-R17 |
| Rear tire | 200/55-R17 |
| Wheels | Black, Bullet Hole Disc Cast Aluminum |
Dimensions and weight
| Wet weight | 330.2 kg (728 lb) |
|---|---|
| Dry weight | 313 kg (690 lb) |
| Seat height | 616 mm (24.3 inches) |
| Overall length | 2,395 mm (94.3 inches) |
| Wheelbase | 1,638 mm (64.5 inches) |
| Ground clearance | 122 mm (4.8 inches) |
Fuel and emissions
| Fuel capacity | 18.93 L (5.00 US gal) |
|---|---|
| Fuel consumption | 5.60 L/100 km (17.9 km/l or 42.00 mpg) |
| Greenhouse gases | 129.9 CO 2 g/km. (CO2 – Carbon dioxide emission) |
Electrical and instruments
| 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 |
|---|---|
| Lights | High beam, neutral, low oil pressure, turn signals, engine diagnostics, security system (optional), 6-speed, low fuel warnings |
Other specifications
| Color options | Anniversary Vintage Bronze/Anniversary Vintage Black, Candy Orange, Black Denim, Vivid Black |
|---|---|
| Exhaust system | Denim Black and Satin Chrome, over/under shotgun exhaust with dual mufflers |
| Price as new | US$ 16799. MSRP depends on country, taxes, accessories, etc. |
Disclaimer: Specifications may vary by market, trim, production date and optional equipment, and scraped or historical data can contain errors. Comparison and percentile values are calculated from Harley-Davidson models in this specifications database. Always double-check important specifications against the motorcycle owner’s/service manual and official Harley-Davidson information before relying on them. Visit the official Harley-Davidson website.