The Harley-Davidson Fat Boy Injection motorcycle specifications include a 1,449 cc (88.42 cu in) engine, a 5-speed gearbox, and a listed weight of 320 kg (705.5 lb).
Key specifications
How the Harley-Davidson Fat Boy Injection 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.
Very close to the Harley-Davidson database average. Around the 59th percentile across Harley-Davidson models.
About 6% lower than the Harley-Davidson database average. Around the 7th 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.
320 kg — heavier than about 59% of Harley-Davidson models, or lighter than about 41%.
647 mm — taller than about 7% 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.
1,638
1,599
Close to average.
647
689
6% below average.
Mechanical overview
Additional useful specifications
| Bore/stroke ratio | 0.94:1 (Undersquare) |
|---|
Model information
| Year released | 2001 |
|---|
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) |
| Valves per cylinder | 2.0 |
| Cooling system | Air |
| Fuel system | Injection |
| Starter | Electric |
Transmission and drivetrain
| Gearbox | 5-speed |
|---|---|
| Final drive | Belt (final drive) |
Chassis and suspension
| Front wheel travel | 129 mm (5.1 inches) |
|---|---|
| Rear wheel travel | 103 mm (4.1 inches) |
Brakes, wheels and tires
| Front brakes | Single disc |
|---|---|
| Rear brakes | Single disc |
Dimensions and weight
| Wet weight | 320 kg (705.5 lb) |
|---|---|
| Seat height | 647 mm (25.5 inches) |
| Wheelbase | 1,638 mm (64.5 inches) |
Fuel and emissions
| Fuel capacity | 18.90 L (4.99 US gal) |
|---|
Performance
| Top speed | 173.0 km/h (107.5 mph) |
|---|
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.