| Year | 1928 |
| Bore x Stroke | 68 x 68 mm |
| Capacity | 494 cc / 30.1 cu in. |
| Clutch | Single plate, dry |
| Compression Ratio | 5.8:1 |
| 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 | ∅200mm Drum |
| Front Suspension | Plate spring, 6 laminae |
| Front Tyre | 26 x 3.5" low pressure or 26 x 3.5" high pressure |
| Fuel Capacity | 12.5 liters / 3.3 US gal |
| Gear Ratio | 1st 2.83 / 2nd 1.55 / 3rd 1.08 |
| Ignition | Bosch high voltage magneto ignition |
| Induction | 1 x Spezial two valve ∅24 mm carburetor |
| Max Power | 13.4 kW / 18 hp @ 4000 rpm |
| Rear Brakes | Block brake |
| Rear Suspension | Rigid |
| Rear Tyre | 26 x 3.5" low pressure or 26 x 3.5" high pressure |
| Starting | Kick |
| Transmission | 3 Speed |
| Wet-Weight | 150 kg / 330 lb |
