| Family | Softail |
| Model | FLFB Fat Boy |
| Riding Style | Cruiser / Custom |
| Color | Black |
| Fuel Economy | 47 mpg |
The original fat custom icon that changed it all has done it again. Satin chrome finishes. Beefy 240mm rear tire. And now available in a Milwaukee-Eight® 107 or 114 Big Twin Engine for the most muscular, unstoppable Fat Boy® motorcycle ever.
| Engine | Milwaukee-Eight® 107 |
| Bore | 3.937 in. |
| Stroke | 4.374 in. |
| Displacement | 1,746 cc (107 cu in) |
| Compression Ratio | 10.0:1 |
| Fuel System | Electronic Sequential Port Fuel Injection (ESPFI) |
| Exhaust | 2-into-2 staggered; catalyst in muffler |
| Length | 93.3 in. |
| Ground Clearance | 4.5 in. |
| Trail | 4.1 in. |
| Rake (Steering Head) (deg) | 30 |
| Seat Height, Laden | 25.9 in. |
| Seat Height, Unladen | 26.6 in. |
| Tires, Front Tire Specification | 160/60R18,70V,BW |
| Tires, Rear Tire Specification | 240/40R18,79V,BW |
| Fuel Capacity | 5 gal. |
| Oil Capacity (w/Filter) | 5 qt. |
| Weight, As Shipped | 670 lb. |
| Weight, In Running Order | 699 lb. |
| Luggage Capacity, Volume |
| Engine Torque Testing Method | J1349 |
| Engine Torque | 109 ft-lb |
| Engine Torque (RPM) | 3,000 |
| Lean Angle, Right (deg) | 25.6 |
| Lean Angle, Left (deg) | 25.6 |
| Fuel Economy | 47 mpg |
| Primary Drive | Chain, 34/46 ratio |
| Gear Ratios (overall) 1st | 9.311 |
| Gear Ratios (overall) 2nd | 6.454 |
| Gear Ratios (overall) 3rd | 4.793 |
| Gear Ratios (overall) 4th | 3.882 |
| Gear Ratios (overall) 5th | 3.307 |
| Gear Ratios (overall) 6th | 2.79 |
| Wheel Type, Front | Machined, Lakester cast aluminum |
| Wheels Type, Rear | Machined, Lakester cast aluminum |
| Caliper Type | 4-piston fixed front and 2-piston floating rear |
| Brakes |
| Electric, Lighting | High beam, turn signals, neutral, low oil pressure, engine diagnostics, ABS, security, low battery voltage, low fuel |
| Electric, Gauges | 5 inch analog speedometer with digital gear, odometer, fuel level, clock, trip, range and tachometer indication |
| Family | Softail |
| Model | FLFB Fat Boy |
| Riding Style | Cruiser / Custom |
| Color | Black |
| Fuel Economy | 47 mpg |
