| General information |
| Model: | Harley-Davidson XA |
| Year: | 1942 |
| Category: |
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| Engine and transmission |
| Displacement: | 740.00 ccm (45.15 cubic inches) |
| Engine type: | Twin, four-stroke |
| Power: | 23.00 HP (16.8 kW)) @ 4600 RPM |
| Compression: | 5.7:1 |
| Bore x stroke: | 77.8 x 77.8 mm (3.1 x 3.1 inches) |
| Fuel control: | Sidevalves |
| Chassis, suspension, brakes and wheels |
| Frame type: | Tubular steel |
| Front suspension: | Leading link |
| Rear suspension: | Pluger rigid |
| Front tyre: | 4.00-18 |
| Rear tyre: | 4.00-18 |
| Front brakes: | Expanding brake (drum brake) |
| Rear brakes: | Expanding brake (drum brake) |
| Physical measures and capacities |
| Wheelbase: | 1,460 mm (57.5 inches) |
| Fuel capacity: | 15.50 litres (4.10 gallons) |