| Year | 1938 |
| Bore x Stroke | 63 x 80 mm |
| Capacity | 498 cc / 30.4 cub in. |
| Clutch | Wet, 6 plate |
| Compression Ratio | 7.1:1 |
| Cooling System | Air cooled |
| Dry Weight | 182 kg / 401 lbs |
| Engine | Four stroke, parallel twin, OHV |
| Final Drive | Chain |
| Frame | Singe tube frame |
| Front Brakes | Drum |
| Front Suspension | Rigid fork with leaf spring |
| Front Tyre | 3.25 - 19 |
| Fuel Capacity | 18 L / 4.8 US gal / 4.0 Imp gal |
| Ignition | 6 V, magnetic flywheel |
| Induction | Single Amal carburetor |
| Max Power | 20.9 kW / 28 hp @ 6000 rpm |
| Rear Brakes | Drum |
| Rear Suspension | Rigid, spring loaded saddle |
| Rear Tyre | 3.50 - 19 |
| Starting | Kick |
| Transmission | 4 Speed |
