| Year | 1991 |
| Bore x Stroke | 70 x 51.8 mm |
| Capacity | 399 mm / 24.3 cu-in |
| Clutch | Wet, multi disc |
| Compression Ratio | 10.7:1 |
| Cooling System | Liquid cooled |
| Dry Weight | 178 kg / 392.4 lbs |
| Engine | Four stroke, parallel twin Cylinder, DOHC, 4 Valves per cylinder |
| Final Drive | Chain |
| Front Brakes | Single 300mm disc 2 piston caliper |
| Front Suspension | 41mm Telescopic forks air assisted |
| Front Tyre | 90/90 VR21 |
| Front Wheel Travel | 220 mm / 8.6 in |
| Fuel Capacity | 15 Litres / 3.9 US gal |
| Ignition | CDI |
| Induction | 2x KEIHIN CVK34 carburetor |
| Lubrication | Wet sump |
| Max Power | 42 hp / 30.9 kW @ 9000 rpm |
| Max Torque | 33.3 Nm / 24.5 lb-ft @ 8000 rpm |
| Rear Brakes | Single 230mm disc 1 piston caliper |
| Rear Suspension | Steal awing arm with preload adjustment |
| Rear Tyre | 130/80 VR17 |
| Rear Wheel Travel | 220 mm / 8.6 in |
| Starting | Electric |
| Transmission | 6 Speed |
| Wet Weight | 192 kg / 423.2 lbs |
