The Harley-Davidson FLSTFI Fat Boy motorcycle specifications include a 1,449 cc (88.42 cu in) engine and a listed weight of 320 kg (705.5 lb).
Key specifications
The 2002 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
How the Harley-Davidson FLSTFI Fat Boy compares
This compares the motorcycle with all Harley-Davidson models in this specifications database. The blue marker is this model and the grey line is the Harley-Davidson database average.
About 14% higher than the Harley-Davidson database average. Around the 69th percentile across Harley-Davidson models.
About 11% larger than the Harley-Davidson database average. Around the 58th percentile across Harley-Davidson models.
Harley-Davidson database percentile rankings
Percentiles show where this motorcycle sits across the Harley-Davidson specifications database. They are descriptive database rankings, not performance ratings.
1,449 cc — larger displacement than about 69% of Harley-Davidson models.
18.9 L — larger than about 58% of Harley-Davidson fuel tanks in this database.
Dimensions compared with Harley-Davidson average
Each measurement is compared with the average value across Harley-Davidson models where that dimension is available.
2,396
2,376
Close to average.
1,630
1,599
Close to average.
123
128
4% below average.
Mechanical overview
Additional useful specifications
| Bore/stroke ratio | 0.94:1 (Undersquare) |
|---|
Model information
| Category | Custom / cruiser |
|---|
Engine specifications
| Engine type | V2, four-stroke |
|---|---|
| Displacement | 1,449 cc (88.42 cu in) |
| Torque | 105.0 Nm (10.7 kgf-m or 77.4 ft.lbs) @ 3,000 rpm |
| Bore × stroke | 95.3 x 101.6 mm (3.8 x 4.0 inches) |
| Compression ratio | 8.8:1 |
| Cooling system | Air |
| Fuel system | Injection |
Brakes, wheels and tires
| Front brakes | Single disc |
|---|---|
| Rear brakes | Single disc |
Dimensions and weight
| Dry weight | 320 kg (705.5 lb) |
|---|---|
| Overall length | 2,396 mm (94.3 inches) |
| Wheelbase | 1,630 mm (64.2 inches) |
| Ground clearance | 123 mm (4.8 inches) |
Fuel and emissions
| Fuel capacity | 18.90 L (4.99 US gal) |
|---|---|
| Reserve fuel capacity | 1.90 L (0.50 US gal) |
Disclaimer: Specifications may vary by market, trim, production date and optional equipment, and scraped or historical data can contain errors. Comparison and percentile values are calculated from Harley-Davidson models in this specifications database. Always double-check important specifications against the motorcycle owner’s/service manual and official Harley-Davidson information before relying on them. Visit the official Harley-Davidson website.