| Year | 1999 |
| Bore x Stroke | 86 x 86mm |
| Capacity | 499 cc / 30.5 cu-in |
| Clutch | Wet, multi-plate, cable operated |
| Compression Ratio | 8.4:1 |
| Cooling System | Liquid cooled |
| Dry Weight | 100 kg / 220.5 lbs |
| Engine | Two stroke, single cylinder, read valve |
| Exhaust | Expansion chamber |
| Final Drive | Chain |
| Final Reduction | 3.357 |
| Frame | High-tensile steel semidouble cradle with aluminum bolt-on. |
| Front Brakes | Single 220mm disc |
| Front Suspension | 41mm upside-down cartridge fork with 20-way compression and 20-way rebound damping |
| Front Tyre | 80/100-21 51M |
| Front Wheel Travel | 310 mm / 12.2 in |
| Fuel Capacity | 9.8 Litres / 2.6 US gal |
| Gear Ratio | 1st 2.000 2nd 1.450 3rd 1.181 4th 0.954 5th 0.791 |
| Ground Clearance | 325 mm / 12.8 in |
| Ignition | Electronic CDI |
| Induction | KeihinPWK39 carburetor |
| Lubrication | Premix |
| Max Power | 66 hp / 49.2 kW @ 7000 rpm |
| Max Torque | 65,7 Nm 48.4 lb-ft / @ 6000 rpm |
| Primary Reduction | 2.538 |
| Rear Brakes | Single 190mm disc |
| Rear Suspension | Bottom-Link UN'1-TKAK with adjustable preload and 20-way compression and 20-way rebound damping |
| Rear Tyre | 120/90-18 64M |
| Rear Wheel Travel | 330 mm / 13.0 in |
| Seat Height | 950 mm / 37.4 in |
| Starting | Kick |
| Trail | 122 mm / 4.8 in |
| Transmission | 5 Speed |
| Wheelbase | 1514 mm / 59.6 in |
