| Year | 1989 |
| Engine | Liquid cooled, four stroke, transverse four cylinder, DOHC, 4 per cylinder. |
| Capacity | 399 |
| Bore x Stroke | 56 x 40.5 mm |
| Compression Ratio | 11.5:1 |
| Clutch | Wet multiple plates |
| Ignition | | |
| Max power (rear tyre) | 59 hp @ 12000 rpm |
| Max Torque | 3.9 kg-m @ 9500 rpm |
| Transmission | 6 Speed / chain |
| Front Suspension | 41mm Telescopic forks |
| Rear Suspension | Monoshock single shock preload adjustable. |
| Front Brakes | 2x 298mm discs 2 piston calipers |
| Rear Brakes | Single 210mm disc 2 piston caliper |
| Front Tire | 110/70R-17 |
| Rear Tire | 140/60R-18 |
| Dry Weight | 155 kg |
| Fuel Capacity | 15 Litres |
| Consumption average | | |
| Braking 60 - 0 / 100 - 0 | | |
| Standing ΒΌ Mile | 13.1 sec / 101 mp/h |
| Top Speed | 122 mp/h |