Euro 21299. MSRP depends on country, taxes, accessories, etc.
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MotoLibrary Score
56/100Balanced
Power/Weight
0.23 hp/kg
Torque
126 Nm
Engine
1690 ccm
Technical Overview
2017 Harley-Davidson Fat Boy Special Technical Analysis & Specification Breakdown
Built around Harley-Davidson's custom - cruiser motorcycle platform, the 2017 Harley-Davidson Fat Boy Special relies on a 1690 cc (103.1 cu in) air-cooled v2, four-stroke powerplant. In factory specification, peak output is rated at 75 HP (54.7 kW) at 5,020 rpm while maximum torque reaches 126 Nm (92.9 lb-ft) at 3,000 rpm, transferring power to the rear wheel through a 6-speed gearbox and belt final drive. With a specific output of 44.4 HP per liter and a 2,020 rpm working window between peak torque (3,000 rpm) and peak power (5,020 rpm), the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.
On the scales, the Fat Boy Special measures 333 kg (734 lbs) wet (curb), translating to a power-to-weight ratio of 0.23 HP/kg (4.44 kg per horsepower). Rider ergonomics and chassis geometry center around a 660 mm (26 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,630 mm (64.2 in) wheelbase engineered for planted straight-line stability. The 18.93-liter (5 US gal) fuel tank paired with a rated consumption of 5.6 L/100 km provides an estimated theoretical range of roughly 338 km (210 miles) between fill-ups.
Specific Output
44.4 HP/L
Power-to-Weight
0.23 HP/kg (4.44 kg/HP)
Power Band Window
3,000–5,020 rpm
Theoretical Range
~338 km (210 mi)
Engine
Displacement1690.0 ccm (103.12 cubic inches)
Engine TypeV2, four-stroke
Engine DetailsHigh Output Twin Cam 103B
Power75.0 HP (54.7 kW)) @ 5020 RPM
Torque126.0 Nm (12.8 kgf-m or 92.9 ft.lbs) @ 3000 RPM
Compression9.7:1
Bore x Stroke98.4 x 111.1 mm (3.9 x 4.4 inches)
Fuel SystemInjection. Electronic Sequential Port Fuel Injection
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
CoolingAir
Transmission
Gearbox6-speed
Final DriveBelt (final drive)
ClutchMulti-plate with diaphragm spring in oil bath
DrivelinePrimary chain, 34/46 ratio
Performance
Fuel Consumption5.60 litres/100 km (17.9 km/l or 42.00 mpg)
Greenhouse Gases129.9 CO2 g/km. (CO2 - Carbon dioxide emission)
ExhaustShotgun exhaust, black denim
Chassis
Rake31.0°
Trail147 mm (5.8 inches)
Front SuspensionTelescopic fork
Rear SuspensionTwin shocks
Wheelbase1630 mm (64.2 inches)
Ground Clearance125 mm (4.9 inches)
Wheels & Brakes
Front Tyre140/75-R17
Rear Tyre200/55-R17
Front BrakesDouble disc. ABS. 4-piston.
Rear BrakesSingle disc. ABS. 4-piston.
WheelsBlack, Bullet Hole Disc Cast Aluminum
Dimensions & Weight
Dry Weight320.0 kg (705.5 pounds)
Weight incl.333.0 kg (734.1 pounds)
Power/Weight0.2344 HP/kg
Seat Height660 mm (26.0 inches) If adjustable, lowest setting.
Overall Length2385 mm (93.9 inches)
Fuel Capacity18.93 litres (5.00 US gallons)
Oil Capacity3.30 litres (3.49 US quarts)
Other
StarterElectric
Color OptionsVivid Black, Black Denim, Charcoal Denim, Red Iron Denim, Crushed Ice Denim
InstrumentsTank-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
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
