18 July. Saturday 2026
Harley-Davidson FLSTFI Fat Boy - 2006 Specifications and Reviews
The 2006 Harley-Davidson FLSTFI Fat Boy is an iconic cruiser designed for riders seeking classic styling with modern reliability. Its 1442cc V-twin engine delivers strong low-end torque ideal for laid-back riding, while electronic fuel injection ensures dependable performance. Best known for its distinctive fat tires and timeless design, it appeals to cruiser enthusiasts valuing heritage and comfort.
General information | |
| Category | Custom / cruiser |
| Year | 2006 |
| Model | Harley-Davidson FLSTFI Fat Boy |
Engine and Transmission Specifications | |
| Clutch | Multi-plate clutch with diaphragm spring in oil bath |
| Transmission typefinal drive | Belt |
| Gearbox | 5-speed |
| Cooling system | Air |
| Fuel control | DOHC |
| Valves per cylinder | 2 |
| Fuel system | Injection. Electronic Sequential Port Fuel Injection (ESPFI ) |
| Bore x stroke | 95.3 x 101.6 mm (3.8 x 4.0 inches) |
| Compression | 8.9:1 |
| Torque | 115.26 |
| Stroke | 4 |
| Engine type | V2 |
| Capacity: | 1442.15 ccm (88.00 cubic inches) |
| | |
Physical measures and capacities | |
| Wheelbase | 1,638 mm (64.5 inches) |
| Ground clearance | 130 mm (5.1 inches) |
| Overall length | 2,395 mm (94.3 inches) |
| Weight incl. oil, gas, etc | 323.9 kg (714.0 pounds) |
| Dry weight | 309.8 kg (683.0 pounds) |
| | |
Harley-Davidson FLSTFI Fat Boy dimensions and frame | |
| Exhaust system | Chrome, over/under shotgun with shorty duals |
| Rear brakes | Single disc |
| Front brakes | Single disc |
| Rear tyre dimensions | 150/80-B16 |
| Front tyre dimensions | MT90-B16 |
| Trail | 147 mm (5.8 inches) |
| Rake (fork angle) | 32.0° |
Speed and acceleration | |
| Color options | Vivid black, brilliant silver, black pearl, deep cobalt, glacier white pearl, yellow pearl, brandy wine sunglo, two-tone chopper blue and brilliant silver, two-tone black cherry and black pearl, two-tone fire red pearl and vivid black, two-tone deep cobal |
| Fuel consumption pr. 10 km (6.2 miles) | 5.11 litres (1.35 gallons) |
| Fuel capacity | 18.92 litres (5.00 gallons) |
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