| Year | 1957 |
| Bore x Stroke | 72 x 73 mm |
| Capacity | 594 cc / 36.2 cu in |
| Clutch | Single plate, dry, suacer spring |
| Compression Ratio | 7.5:1 |
| Cooling System | Air cooled |
| Engine | Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder. |
| Final Drive | Shaft |
| Frame | Double loop steel tubular frame |
| Front Brakes | ∅200mm Drum |
| Front Suspension | Telescopic front fork with hydraulic damping |
| Front Tyre | 3.50 - S18" |
| Fuel Capacity | 17 liters / 4.4 US gal |
| Gear Ratio | 1st 5.33 / 2nd 3.02 / 3rd 2.04 / 4th 1.54 |
| Ignition | Magneto ignition |
| Induction | 2 x Bing 1/26/9 - 1/26/10 carburetors |
| Max Power | 26.1 kW / 35 hp @ 6800 rpm |
| Rear Brakes | ∅200mm Drum |
| Rear Suspension | Swingarm, plunger type shock absorbers |
| Rear Tyre | 4.00 - S18" |
| Starting | Electric |
| Transmission | 4 Speed |
| Wet-Weight | 202 kg / 445 lbs |
