| Year | 1988 |
| Bore x Stroke | 70 x 51 mm |
| Capacity | 399 cc / 24.3 cu-in |
| Clutch | Wet multi disc |
| Compression Ratio | 10.7:1 |
| Cooling System | Liquid cooled |
| Dry Weight | 169 kg / 372.5 lbs |
| Engine | Four stroke, parallel twin cylinder, DOHC, 4 valve per cylinder. |
| Final Drive | Chain |
| Frame | Tubular, double cradle (aluminium) |
| Front Brakes | Single disc |
| Front Suspension | Telescopic forks |
| Front Tyre | 100/90-16 |
| Fuel Capacity | 15 Litres / 3.9 US gal |
| Gear Ratio | 1st 2,571 2nd 1,777 3rd 1,38 4th 1,125 5th 0,961 6th 0,851 |
| Ignition | CDI |
| Induction | 4x Kelhin CVM30 carburetors |
| Max Power | 50 hp / 36.5 kW @ 10500 rpm |
| Max Torque | 3.6 kgf-m / 26 lb-ft @ 9000 rpm |
| Rear Brakes | Single drum |
| Rear Suspension | Swing arm |
| Rear Tyre | 120/90-16 |
| Seat Height | 770 mm / 30.3 in |
| Starting | Electric |
| Transmission | 6 Speed |
