| Attribute | Value |
| General |
| Production from | 1919 year |
| Make | Harley-Davidson |
| Model | Harley-Davidson Sport Twin |
| Category | Sport |
| Engine and transmission |
| Engine type | Twin, four-stroke |
| Valves per cylinder | Add |
| Fuel system | Carburettor |
| Engine details | Add |
| Displacement | 590 cm³ |
| Power | Add |
| Max RPM | Add |
| Fuel consumption | Add |
| Cooling system | Air |
| Transmission type,final drive | Chain |
| Torque | Add |
| Bore | 69.9 mm |
| Stroke | 76.2 mm |
| Gearbox | Add |
| Greenhouse gases | Add |
| Fuel control | Sidevalves |
| Emission details | Add |
| Driveline | Add |
| Ignition | Magneto |
| Clutch | Three speed |
| Lubrication system | Add |
| Compression | 3.8:1 |
| Exhaust system | Add |
| Chassis |
| Front suspension | Trailing link with single downtube |
| Rear suspension | Rigid |
| Front brakes | Add |
| Rear brakes | Add |
| Diameter | Add |
| Frame type | Tubular steel |
| Front tyre | 3-26 |
| Rear tyre | 3-26 |
| Seat | Add |
| Wheels | Add |
| Front wheel travel | Add |
| Rear wheel travel | Add |
| Trail | Add |
| Rake (fork angle) | Add |
| Other |
| Battery capacity | Add |
| Starter | Add |
| Color options | Add |
| Carrying capacity | Add |
| Light | Add |
| Instruments | Add |
| Electrical Voltage | Add |
| Dimensions |
| Wheelbase | 1,448 mm |
| Kerb weight | Add |
| Dry weight | 120 kg |
| Power/weight ratio | Add |
| Overall height | Add |
| Overall length | Add |
| Overall width | Add |
| Seat height | Add |
| Alternate seat height | Add |
| Ground clearance | Add |
| Front percentage of weight | Add |
| Rear percentage of weight | Add |
| Performance |
| Top speed | Add |
| Acceleration 0-100 km/h | Add |
| Length | Add |
| Reserve fuel capacity | Add |
| Fuel capacity | 10 l |
| Oil capacity | 1.9 l |
| Width | Add |
| Height | Add |