| Year | 1923 |
| Bore x Stroke | 68 x 68 mm |
| Capacity | 494 cc / 30.1 cu in. |
| Clutch | Single plate, dry |
| Compression Ratio | 5.0:1 |
| Cooling System | Air cooled |
| Engine | Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder. |
| Final Drive | Shaft |
| Frame | Twin loop steel tubular frame |
| Front Brakes | ∅150mm Drum |
| Front Suspension | Twin cantilever spring |
| Front Tyre | 26 x 3.5 low pressure or 26 x 3.5 high pressure |
| Fuel Capacity | 14 liters / 3.6 US gal |
| Gear Ratio | 1st 2.27 / 2nd 1.50 / 3rd 1.08:1 |
| Ignition | Bosch high voltage magneto ignition |
| Induction | 1 x Special ∅22 mm carburetor |
| Max Power | 6.3 kW / 8.5 hp @ 3200 rpm |
| Rear Brakes | Block brake |
| Rear Suspension | Rigid, spring loaded saddle |
| Rear Tyre | 26 x 3.5 low pressure or 26 x 3.5 high pressure |
| Starting | Kick |
| Transmission | 3 Speed |
| Wet-Weight | 122 kg / 268 lbs |
