| Year | 1984 |
| Bore x Stroke | 67 x 56.6 mm |
| Capacity | 399 cc / 24.3 cu in |
| Compression Ratio | 10.0:1 |
| Dimensions | Length 2105 mm / 82.9 in Width 755 mm / 297 in Height 1160 mm / 45.7 in |
| Dry Weight | 177 kg / 390 lbs |
| Engine | Four stroke, parallel twin cylinder, DOHC, 4 valves per cylinder. |
| Final Drive | s530 chain |
| Front Brakes | Single disc |
| Front Suspension | Telescopic, coil spring, oil damped |
| Front Tyre | 3.00S184PR |
| Fuel Capacity | 16 Litres / 4.8 US gal |
| Ground Clearance | 145 mm / 5.7 in |
| Ignition | Transistorized |
| Induction | MBwni BS34SS |
| Lubrication | Wet sump |
| Max Power | 29 kW / 39 hp @ 9500 rpm |
| Max Torque | 31.4 Nm / 3.2 kgf-m / 23.2 lb-ft @ 3000 rpm |
| Rear Brakes | Drum |
| Rear Suspension | Dual dampers, coil spring, 5-way adjustable |
| Rear Tyre | 3.50S184PR |
| Seat Height | 755 mm / 29.7 in |
| Starting | Electric |
| Transmission | 6 Speed constant mesh |
| Wheelbase | 1420mm / 55.9 in |