The Harley-Davidson FLHRSI Road King Custom motorcycle specifications include a 1,449 cc (88.42 cu in) engine, a 5-speed gearbox, and a listed weight of 332 kg (731.9 lb).
Key specifications
The 2004 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
How the Harley-Davidson FLHRSI Road King Custom 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 28th 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.
663 mm — taller than about 28% 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.
2,440
2,376
Close to average.
1,592
1,599
Close to average.
663
689
4% below average.
119
128
7% below average.
Mechanical overview
Additional useful specifications
| Front tire size | 90/90-16 |
|---|---|
| Rear tire size | 150/85-16 |
| Front tire width | 90 mm |
| Front tire aspect ratio | 90% |
| Front rim diameter | 16 in |
| Rear tire width | 150 mm |
| Rear tire aspect ratio | 85% |
| Rear rim diameter | 16 in |
| 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 | 109.0 Nm (11.1 kgf-m or 80.4 ft.lbs) @ 3,400 rpm |
| Bore × stroke | 95.3 x 101.6 mm (3.8 x 4.0 inches) |
| Compression ratio | 8.8:1 |
| Valves per cylinder | 2.0 |
| Cooling system | Air |
| Fuel system | Injection |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) |
Transmission and drivetrain
| Gearbox | 5-speed |
|---|---|
| Final drive | Belt (final drive) |
Chassis and suspension
| Rake | 26.0° |
|---|---|
| Trail | 158 mm (6.2 inches) |
Brakes, wheels and tires
| Front brakes | Double disc |
|---|---|
| Rear brakes | Single disc |
| Front tire | 90/90-16 |
| Rear tire | 150/85-16 |
Dimensions and weight
| Dry weight | 332 kg (731.9 lb) |
|---|---|
| Seat height | 663 mm (26.1 inches) |
| Overall length | 2,440 mm (96.1 inches) |
| Wheelbase | 1,592 mm (62.7 inches) |
| Ground clearance | 119 mm (4.7 inches) |
Fuel and emissions
| Fuel capacity | 18.90 L (4.99 US gal) |
|---|
Other specifications
| Color options | Vivid black, brilliant silver, luxury teal, smokey gold, real red, luxury blue, lava red sunglo |
|---|---|
| Comments | Leather saddlebags with hidden supports; pullback "beach bar" handlebars; low profile, air-adjustable rear suspension; cast and chrome slotted alloy wheels; chrome wind-swept visor; clean front and rear fenders; sleek streamliner footboards, passenger pegs and brake pedals |
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.