Cruisers
2012Harley-Davidson FLSTF Softail Fat Boy
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The 2012 Harley-Davidson FLSTF Softail Fat Boy is an iconic cruiser that appeals to riders seeking classic style with modern reliability. Known for its distinctive fat tire design, low-slung stance, and throwback aesthetic, it delivers impressive torque and comfortable two-up seating. This heavyweight cruiser excels on cruising and highway riding with its robust construction and timeless appeal.
- Capacity
- 1688.0 ccm
- Engine
- V-Twin, four-stroke
- Gearbox
- 6-speed
- Dry weight
- 314.8 kg
- Seat height
- 635 mm
- Power
- 103.0 HP (75.8 kW)
What’s new for the 2012 Harley-Davidson FLSTF Softail Fat Boy
vs the 2011| Spec | 2011 | 2012 |
|---|---|---|
| Engine capacity | 1584.0 ccm (96.66 cubic inches) | 1688.0 ccm (103.01 cubic inches) |
| Power | 75.0 HP (55.2 kW) | 103.0 HP (75.8 kW) |
| Torque | 125.0 Nm (12.7 kgf-m or 92.2 ft.lbs) @ 3500 RPM | 133.8 Nm (13.6 kgf-m or 98.7 ft.lbs) @ 3000 RPM |
| Wet weight | — | 328.9 kg (725.1 pounds) |
| Seat height | 690 mm (27.2 inches) | 635 mm (25.0 inches) |
| Fuel capacity | 19.70 litres (5.20 US gallons) | 18.90 litres (4.99 US gallons) |
| Front suspension | 41.3mm telescopic, beer can covers | 41.3 mm telescopic, beer can covers |
| Front brakes | Single disc. 4-piston | Single disc. 4-piston caliper. Optional ABS. |
| Rear brakes | Single disc. 2-piston | Single disc. 2-piston caliper. Optional ABS. |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built for laid-back boulevard cruising and image-driven riding rather than outright performance.
- Built for
- A muscular, torque-rich cruiser icon that rewards relaxed throttle rolls and a laid-back riding style over aggressive cornering.
- Not ideal for
- Not the right choice for riders seeking sharp cornering agility, off-road capability, or high-speed sport performance.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usRange and running costs
Worked out in your browser - nothing is sent to usBased 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.
Engine
- Capacity
- 1688.0 ccm
- Power
- 103.0 HP (75.8 kW)
- CO2 Emissions
- 130 CO2 g/km
- Torque
- 133.8 Nm (13.6 kgf-m) @ 3000 RPM
- Engine type
- V-Twin, four-stroke
- Fuel consumption
- 5.60 litres/100 km (17.9 km/l)
- Power/weight ratio
- 0.3272 HP/kg (dry)
- Bore x stroke
- 95.3 x 111.3 mm
- Compression
- 9.2:1
- Cooling system
- Air
- Fuel system
- Injection
- Starting
- Electric
- Valves per cylinder
- 2
- Lubrication system
- Pressurized, dry-sump
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
- 635 mm
- Dry weight
- 314.8 kg
- Wet weight
- 328.9 kg
- Fuel capacity
- 18.90 litres
- Ground clearance
- 130 mm
- Oil capacity
- 3.30 litres
Chassis & suspension
- Frame
- Mild steel tubular frame; rectangular section backbone; stamped, cast, and forged junctions; forged fender supports; MIG welded
- Front suspension
- 41.3 mm telescopic, beer can covers
- Rear suspension
- Hidden, horizontal-mounted, coil-over
- Front wheel travel
- 130 mm
- Rear wheel travel
- 109 mm
- Rake (fork angle)
- 31.0°
- Trail
- 147 mm
Brakes & wheels
- Front brakes
- Single disc. 4-piston caliper. Optional ABS.
- Front brakes diameter
- 292 mm
- Rear brakes
- Single disc. 2-piston caliper. Optional ABS.
- Rear brakes diameter
- 292 mm
- ABS
- Optional
- Front tyre
- 140/75-R17
- Rear tyre
- 200/55-R17
Other
- Color options
- Vivid Black, Chrome Yellow, Midnight Pearl/Brilliant Silver Pearl, Tequila Sunrise/H-D Orange
- Warranty
- 24
Specs last verified against published sources: .
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 | 2007 | 2008 | 2010 | 2011 | 2012 |
|---|---|---|---|---|---|
| Capacity | 1573 cc | 1573 cc | 1584 cc | 1584 cc | 1688 cc |
| Dry weight | 315 kg | 315 kg | 313 kg | 313 kg | 315 kg |
| Seat height | 698 mm | 698 mm | 690 mm | 690 mm | 635 mm |
| Fuel capacity | 18.9 L | 18.9 L | 19.7 L | 19.7 L | 18.9 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Safety Recalls
⚠ 1 recall may applySERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDERDec 2014 · 14V794000
Harley-Davidson Motor Company (Harley-Davidson) is recalling certain model year 2012 FXST103, FLSTC, FLSTC103, FLSTF, FLSTF103, FXDL, FXDWG, FXDWG103, FXDC, FXDB, FLSTN, FLSTN103, FLSTC103Shrine, FLSTFB, FLSTFB103, FXS, FXS103, FLS, FLS103, FLD, FLD103, FXDF, and FXDF103 Dyna and Softail motorcycles manufactured August 22, 2011, through February 24, 2012. In the affected motorcycles, the threads for the brake line banjo bolt in the front brake master cylinder may corrode.
Risk: If the threads corrode, a sudden loss of brake fluid could result, causing a loss of the front brakes, and increasing the risk of a crash.
Remedy: Harley-Davidson will notify owners, and dealers will flush and inspect the front brake master cylinder and, if necessary, replace the master cylinder, free of charge. The recall is expected to begin on January 22, 2015. Owners may contact Harley-Davidson customer service at 1-800-258-2464. Harley-Davidson's number for this recall is 0163 and 0164.
These recalls cover some 2012 bikes of this model. Whether one applies to a specific bike, and whether the repair has already been done, depends on its VIN — check your VIN with NHTSA or ask a dealer.
Source: NHTSA. View all Harley-Davidson recalls →
Rider Reviews
Common questions
What is the engine size of the Harley-Davidson FLSTF Softail Fat Boy?
The 2012 Harley-Davidson FLSTF Softail Fat Boy has a Capacity of 1688.0 ccm (103.01 cubic inches).
What engine power does the Harley-Davidson FLSTF Softail Fat Boy have?
The 2012 Harley-Davidson FLSTF Softail Fat Boy has a Power of 103.0 HP (75.8 kW).
How many gears does the Harley-Davidson FLSTF Softail Fat Boy have?
The 2012 Harley-Davidson FLSTF Softail Fat Boy has a Gearbox of 6-speed.
What is the torque of the Harley-Davidson FLSTF Softail Fat Boy?
The 2012 Harley-Davidson FLSTF Softail Fat Boy has a Torque of 133.8 Nm (13.6 kgf-m or 98.7 ft.lbs) @ 3000 RPM.
How much does the Harley-Davidson FLSTF Softail Fat Boy weigh?
The 2012 Harley-Davidson FLSTF Softail Fat Boy has a Dry weight of 314.8 kg (694.0 pounds).
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