| Year | 2004 |
| Bore x Stroke | 90 x 62.6 mm. |
| Capacity | 398 cc / 24.3 cu-in |
| Clutch | Wet, multi-disc, manual |
| Compression Ratio | 11.3:1 |
| Cooling System | Liquid cooled, 50% distilled water & 50% ethylene glycol base antifreeze |
| Dimensions | Length 2235 mm / 88.0 in Width 825.5 mm / 32.5 in Height 1244.6 mm / 49.0 in |
| Dry Weight | 119 kg / 262 lbs |
| Engine | Four stroke, single cylinder, DOHC, 4 valve |
| Final Drive | Chain, 520, O-ring, 14-tooth front, 50-tooth rear |
| Frame | High tensile steel perimeter |
| Front Brakes | Single 250mm disc 2 piston caliper |
| Front Suspension | Telescopic, oil-damped, 11-way compression damping, adjustable spring preload |
| Front Tyre | 80/100-21 |
| Front Wheel Travel | 287 mm / 11.3 in |
| Fuel Capacity | 10 Litres / 2.6 US gal |
| Ground Clearance | 325 mm / 12.8 in |
| Ignition | Digital CDI |
| Induction | Keihin FCR39 |
| Max Power | 40 hp / 29.2 kW @ 8500 rpm |
| Max Torque | NA |
| Rake | 27.6 |
| Rear Brakes | Single 220mm disc 1 piston caliper |
| Rear Suspension | Link-type, fully adjustable spring preload, 26-way compression damping |
| Rear Tyre | 120/90-18 |
| Rear Wheel Travel | 294 mm / 11.6 in |
| Seat Height | 945 mm / 37.2 in |
| Starting | Electric |
| Trail | 114.3 mm / 4.5 in |
| Transmission | 6 Speed |
| Wheelbase | 1473 mm / 58.0 in |
