Engineered by Harley-Davidson for the custom - cruiser motorcycle segment, the 2007 Harley-Davidson FLSTF Softail Fat Boy relies on a 1573.3 cc (96 cu in) air-cooled v2, four-stroke powerplant. In factory specification, maximum torque reaches 121.8 Nm (89.8 lb-ft) at 2,750 rpm, transferring power to the rear wheel through a 6-speed gearbox and belt final drive. Internal engine geometry specifies a bore and stroke of 95.3 x 111.3 mm (3.8 x 4.4 inches) with a 9.2:1 compression ratio.
On the scales, the FLSTF Softail Fat Boy measures 323.9 kg (714 lbs) wet (curb). Rider ergonomics and chassis geometry center around a 698 mm (27.5 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,638 mm (64.5 in) wheelbase engineered for planted straight-line stability. The 18.92-liter (5 US gal) fuel tank paired with a rated consumption of 4.43 L/100 km provides an estimated theoretical range of roughly 427 km (265 miles) between fill-ups.
Within MotoLibrary's Harley-Davidson archive, this model family spans 4 indexed model years from 2007 to 2012, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Theoretical Range
~427 km (265 mi)
Engine
Displacement1573.3 ccm (96.00 cubic inches)
Engine TypeV2, four-stroke
Engine DetailsV2, four-stroke
Torque121.8 Nm (12.4 kgf-m or 89.8 ft.lbs) @ 2750 RPM
Compression9.2:1
Bore x Stroke95.3 x 111.3 mm (3.8 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
Performance
Fuel Consumption4.43 litres/100 km (22.6 km/l or 53.10 mpg)
Greenhouse Gases102.8 CO2 g/km. (CO2 - Carbon dioxide emission)
ExhaustChrome, over/under shotgun duals
Chassis
Rake31.6°
Trail147 mm (5.8 inches)
Front SuspensionTelescopic fork, 41 mm
Rear SuspensionHidden shock
Wheelbase1638 mm (64.5 inches)
Ground Clearance130 mm (5.1 inches)
Wheels & Brakes
Front Tyre140/75-R17
Rear Tyre200/55-R17
Front BrakesSingle disc. 4-piston caliper
Front Brake Ø292 mm (11.5 inches)
Rear BrakesSingle disc. 4-piston caliper
Rear Brake Ø292 mm (11.5 inches)
Dimensions & Weight
Dry Weight314.8 kg (694.0 pounds)
Weight incl.323.9 kg (714.0 pounds)
Seat Height698 mm (27.5 inches) If adjustable, lowest setting.
Overall Length2395 mm (94.3 inches)
Fuel Capacity18.92 litres (5.00 US gallons)
Other
StarterElectric
Color OptionsVivid black, black cherry pearl, black pearl, fire red pearl, deep cobalt pearl, suede blue pearl (new), olive pearl (new), Pacific blue pearl (new), pewter pearl (new), yellow pearl, white gold pearl (new), two-tone burgundy and crème/gold pearl (custo
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.
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.
