Comparison of Harley-Davidson FLSTF Softail Fat Boy 2012 and Harley-Davidson FLSTFB Softail Fat Boy Lo [S]ave
| Attribute |  Harley-Davidson FLSTF Softail Fat Boy 2012 × |  Harley-Davidson FLSTFB Softail Fat Boy Lo × |
|---|---|---|
| General | ||
| Production from (year) | 2012 | 2012 |
| Make | Harley-Davidson | Harley-Davidson |
| Model | Harley-Davidson FLSTF Softail Fat Boy | Harley-Davidson FLSTFB Softail Fat Boy Lo |
| Category | Custom / cruiser | Custom / cruiser |
| Engine and transmission | ||
| Engine type | V2, four-stroke | V2, four-stroke |
| Valves per cylinder | 2 | - |
| Fuel system | Injection. Electronic Sequential Port Fuel Injection (ESPFI) | Injection. Electronic Sequential Port Fuel Injection (ESPFI) |
| Engine details | Air-cooled, Twin Cam 103B™ | Air-cooled, Twin Cam 103B™ |
| Displacement (cm³) | 1,688 | 1,688 |
| Fuel consumption (l/100km) | 5.6 | 5.6 |
| Cooling system | Air | Air |
| Transmission type,final drive | Belt | Belt |
| Torque (Nm) | 133.8 | 133.8 |
| Bore (mm) | 98.4 | 98.4 |
| Stroke (mm) | 111.3 | 111.3 |
| Gearbox | 6-speed | 6-speed |
| Greenhouse gases | 129.9 CO2 g/km. (CO2 - Carbon dioxide emission) | 129.9 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Fuel control | - | Double Overhead Cams/Twin Cam (DOHC) |
| Driveline | Primary Drive Chain, 34/46 ratio. Final Drive Belt, 32/66 ratio. | Primary Drive Chain, 34/46 ratio. Final Drive Belt, 32/66 ratio. |
| Clutch | Multi-plate with diaphragm spring in oil bath | Multi-plate with diaphragm spring in oil bath |
| Lubrication system | Pressurized, dry-sump | Pressurized, dry-sump |
| Compression | 9.6:1 | 9.6:1 |
| Exhaust system | Chrome, over/under shotgun exhaust with dual mufflers | Denim Black and Satin Chrome, over/under shotgun exhaust with dual mufflers |
| Chassis | ||
| Front suspension | 41.3 mm telescopic, “beer can” covers | 41.3 mm telescopic, “beer can” covers |
| Rear suspension | Hidden, horizontal-mounted, coil-over | Hidden, horizontal-mounted, coil-over |
| Front brakes | Single disc. 4-piston caliper. Optional ABS. | Single disc. 4-piston caliper. Optional ABS. |
| Rear brakes | Single disc. 2-piston caliper. Optional ABS. | Single disc. 2-piston caliper. Optional ABS. |
| Diameter (mm) | 292 | 292 |
| Frame type | Mild steel tubular frame; rectangular section backbone; stamped, cast, and forged junctions; forged fender supports; MIG welded | Mild steel tubular frame; rectangular section backbone; stamped, cast, and forged junctions; forged fender supports; MIG welded |
| Front tyre | 140/75-R17 | 140/75-R17 |
| Rear tyre | 200/55-R17 | 200/55-R17 |
| Seat | Two-piece, two-up Softail® seat with removable pillion | Two-piece, two-up Softail® seat with removable pillion |
| Wheels | Silver, Bullet Hole Disc Cast Aluminum | Black, Bullet Hole Disc Cast Aluminum |
| Front wheel travel (mm) | 130 | 130 |
| Rear wheel travel (mm) | 109 | 91 |
| Trail (mm) | 147 | 147 |
| Rake (fork angle) (degree) | 31 | 31.6 |
| Other | ||
| Starter | Electric | Electric |
| Color options |
|
|
| Light | - | 55-watt low beam, 60-watt high beam |
| Instruments | Tank-mounted electronic speedometer with odometer, time-of-day clock on odometer, dual tripmeter, RPM/gear display | Tank-mounted electronic speedometer with odometer, time-of-day clock on odometer, dual tripmeter, RPM/gear display |
| Electrical Voltage (V) | 12 | 12 |
| Dimensions | ||
| Wheelbase (mm) | 1,638 | 1,638 |
| Kerb weight (kg) | 328.9 | 331.6 |
| Dry weight (kg) | 314 | 317 |
| Overall length (mm) | 2,395 | 2,395 |
| Seat height (mm) | 635 | 616 |
| Ground clearance (mm) | 130 | 122 |
| Performance | ||
| Fuel capacity (l) | 18.93 | 18.93 |
| Oil capacity (l) | 3.3 | 3.3 |
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