| Year | 1928 |
| Bore x Stroke | 63 x 78 mm |
| Capacity | 486 cc / 29.7 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 | 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 1.08:1 |
| Ignition | Bosch high voltage magneto ignition |
| Induction | 1 x Spezial 2 valve ∅22 mm carburator |
| Max Power | 8.9 kW / 12 hp @ 3400 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 / Drive | 3 Speed |
| Wet-Weight | 152 kg / 334 lbs |
