| Year | 1981 |
| Bore x Stroke | 88.8 x 108 mm |
| Capacity | 1338 cc / 81.6 cu in |
| Compression Ratio | 7.4:1 |
| Cooling System | Air cooled |
| Dry Weight | 328 kg / 725 lbs |
| Engine | Four stroke, 45° V-Twin, OHV, 2 valves per cylinder. |
| Exhaust | Two-into-two, chrome |
| Final Drive | Chain |
| Frame | Duplex cradle type. |
| Front Brakes | 2 x Ø292 mm disc, 1 piston caliper |
| Front Suspension | Gas telescopic forks |
| Front Tyre | 140/90-16 |
| Fuel Capacity | 20 Litres / 5.3 US gal |
| Gear Ratio | 1st 10.89 / 2nd 7.43 / 3rd 5.38 / 4th 4.13 / 5th 3.36:1 |
| GVWR | 535 kg / 1180 lbs |
| Ignition | Electronic |
| Induction | One butterfly valve Keihin carburetor |
| Max Power | 52.2 kW / 70 hp @ 5800 rpm |
| Max Torque | 93.5 Nm / 9.53 kgf/m / 69 ft-lb @ 3000 rpm |
| Photos | Courtesy: Don Kennelly |
| Rear Brakes | Single Ø292 mm disc, 1 piston caliper. |
| Rear Suspension | Dual shocks preload adjustable. |
| Rear Tyre | 140/90-16 |
| Starting | Electric |
| Transmission | 5 Speed |
| Wet Weight | 358 kg / 789 lbs |
