| MODEL | HARLEY-DAVIDSON SOFTAIL FAT BOY FLSTF 2011 |
| Year | 2011 |
| Engine Type | Four stroke, V-twin, Twin Cam 96B, pushrod-operated OHV with hydraulic self-adjusting lifters, 2 valves per cylinder |
| Displacement / Capacity | 1584 cc / 96 cu in |
| Bore X Stroke | 95.25 x 111.25 mm |
| Compression Ratio | 9.2:1 |
| Cooling System | Air cooled |
| Max Power | — |
| Max Torque | 124.7 Nm / 92 lb-ft @ 3000 rpm |
| Ignition | Single-fire, non-wasted, map-controlled spark ignition |
| Induction | Electronic Sequential Port Fuel Injection (ESPFI) |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 6-speed |
| Clutch | Multi-plate, wet |
| Final Drive | Belt |
| CHASSIS SPECS | |
| Frame | Mild steel tubular frame, rectangular-section backbone, stamped, cast and forged junctions, forged fender supports, MIG welded |
| Front Suspension | 41.3 mm telescopic fork, chrome dust covers |
| Rear Suspension | Hidden, horizontal-mounted coil-over shocks |
| Front Brakes | Single 292 mm disc, 4-piston caliper |
| Rear Brakes | Single 292 mm disc, 4-piston caliper |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 635 mm / 25.0 in (laden), 690 mm / 27.1 in (unladen) |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | 329 kg / 725 lbs |
| WHEEL SPECS | |
| Front Tyre | 140/75R17 |
| Rear Tyre | 200/55R17 |
| FUEL SYSTEM | |
| Fuel Capacity | 18.9 Litres / 5.0 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The 2011 Fat Boy belongs to the generation that Harley-Davidson enlarged for 2007: a rigid-mounted, counterbalanced 1584 cc Twin Cam 96B with standard fuel injection, a six-speed Cruise Drive gearbox, a 17-inch front wheel and a much wider 200 mm rear tyre under a shortened rear fender. The hidden horizontal shocks keep the hardtail look, while the solid "bullet hole" disc wheels, wide bars and fat front end remain the bike's signature. 2011 was the final year of the 96 cubic inch engine in the Fat Boy before the 103 arrived.
