Key performance
75 ch
Power
1690 cc
Displacement
333 kg
Weight
670 mm
Seat height
18.9 L
Fuel capacity
Compare the Harley-Davidson Softail Fat Boy with: Choose a motorcycle →
Technical specifications
Changements 1998 → 2017
- Displacement
- 1338 cc → 1690 cc
- Power
- 56.0 ch @ 5000 tr/min (40.9 kW) → 75.0 ch @ 5020 tr/min (54.7 kW)
- Torque
- 99.0 Nm @ 2350 tr/min → 126.0 Nm @ 3000 tr/min
- Compression ratio
- — → 9.6:1
- Bore × stroke
- — → 98.4 x 111.1 mm (3.9 x 4.4 inches)
- Valves/cylinder
- 2 → —
- Fuel system
- — → Injection. Electronic Sequential Port Fuel Injection
- Valve timing
- — → Double Overhead Cams/Twin Cam (DOHC)
- Gearbox
- 5-speed → 6-speed
- Clutch
- — → Multi-plate with diaphragm spring in oil bath
- Front suspension
- — → Telescopic fork
- Rear suspension
- — → Twin shocks
- Front brakes
- Single disc → Double disc. ABS. 4-piston.
- Rear brakes
- — → Single disc. ABS. 2-piston.
- Front tyre
- — → 140/75-R17
- Rear tyre
- — → 200/55-R17
- Seat height
- 654.00 mm → 670.00 mm
- Wheelbase
- — → 1690.00 mm
- Ground clearance
- — → 130.00 mm
- Length
- — → 2396.00 mm
- Fuel capacity
- — → 18.93 L
- Weight
- — → 333.00 kg
- Dry weight
- 284.00 kg → 320.00 kg
Engine
- Displacement
- 1690 cc
- Power
- 75.0 ch @ 5020 tr/min (54.7 kW)
- Torque
- 126.0 Nm @ 3000 tr/min
- Engine type
- V2, four-stroke
- Cooling
- Air
- Compression ratio
- 9.6:1
- Bore × stroke
- 98.4 x 111.1 mm (3.9 x 4.4 inches)
- Fuel system
- Injection. Electronic Sequential Port Fuel Injection
- Valve timing
- Double Overhead Cams/Twin Cam (DOHC)
- Starter
- Electric
Chassis
- Gearbox
- 6-speed
- Final drive
- Belt (final drive)
- Clutch
- Multi-plate with diaphragm spring in oil bath
- Front suspension
- Telescopic fork
- Rear suspension
- Twin shocks
Brakes
- Front brakes
- Double disc. ABS. 4-piston.
- Rear brakes
- Single disc. ABS. 2-piston.
- Front tyre
- 140/75-R17
- Rear tyre
- 200/55-R17
Dimensions
- Seat height
- 670.00 mm
- Wheelbase
- 1690.00 mm
- Ground clearance
- 130.00 mm
- Length
- 2396.00 mm
- Fuel capacity
- 18.93 L
- Weight
- 333.00 kg
- Dry weight
- 320.00 kg
Indicators & positioning
Weight-to-power ratio
0.23 ch/kg
Torque / weight
0.38 Nm/kg
Volumetric power
44.4 ch/L
In category Custom / cruiser · 845-3380cc displacement (2993 motorcycles compared)
Power 75 ch Top 51%
49 ch median 77 ch 148 ch
Weight 333 kg Lighter than 25%
235 kg median 305 kg 379 kg
P/W ratio 0.23 ch/kg Top 69%
0.18 median 0.25 0.49 ch/kg
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