| Year | 1929 |
| Bore x Stroke | 63 x 68 mm |
| Capacity | 735 cc / 44.9 cu in. |
| Clutch | Double plates, dry |
| Compression Ratio | 6.75:1 |
| Cooling System | Air cooled |
| Engine | Four stroke, two cylinder flat twin, OHV, 2 valves per cylinder. |
| Final Drive | Shaft |
| Frame | Twin loop pressed steel frame |
| Front Brake | ∅200mm Drum |
| Front Suspension | Plate spring, 9 laminae |
| Front Tyre | 3.50 x 19" |
| Fuel Capacity | 14 L / 3.7 US gal |
| Gear Ratio | 1st 2.83 / 2nd 1.55 / 3rd 1.08:1 |
| Generator | Bosch magneto generator D2L or magneto ignition FF2 |
| Ignition | Magneto ignition |
| Induction | 1 carburetor Type BMW Spezial ∅26 mm (1932: 2 x carburettor Amal type 6/011 RH & LH) |
| Max Power | 18.6 kW / 25 hp @ 4000 rpm |
| Rear Brakes | Cardan brake |
| Rear Suspension | Rigid, spring loaded saddle |
| Rear Tyre | 3.50 x 19" |
| Starting | Kick |
| Transmission | 3 Speed |
| Wet-Weight | 165 kg / 364 lbs |
