| Year | 1977 |
| Bore x Stroke | 70.0 x 64.8 mm |
| Capacity | 498 cc / 30.4 cu-in |
| Compression Ratio | 8.5:1 |
| Cooling System | Air cooled |
| Engine | Four stroke, parallel twin cylinder, DOHC, 2 valves per cylinder, |
| Final Drive | Chain |
| Front Brakes | Single disc |
| Front Suspension | Telescopic hydraulic forks |
| Front Tyre | 3.50-19 |
| Front Wheel Travel | 121 mm / 4.7 in |
| Fuel Capacity | 16 Litres / 4.2 US gal |
| Ignition | Battery induction |
| Induction | Keihin carburetor |
| Max Power | 42 hp / 30.7 kW @ 8000 rpm |
| Max Torque | 29.5 Nm / 21.8 lb-ft @ 7000 rpm |
| Rear Brakes | Drum |
| Rear Suspension | Swinging fork |
| Rear Tyre | 4.00-18 |
| Rear Wheel Travel | 79 mm / 3.1 in |
| Seat Height | 860 mm / 31.0 in |
| Starting | Electric & Kick |
| Transmission | 5 Speed |
| Wet Weight | 209 kg / 463.0 lbs |
| Wheelbase | 1410 mm / 56 in |
