| Year | 1981 |
| Battery | Yuasa 12V 14Ah |
| Bore x Stroke | 80 x 58 mm |
| Capacity | 583 cc / 35.6 cu in |
| Clutch | Wet, multiplate |
| Compression Ratio | 10.4:1 |
| Consumption Average | 5.2 L/100 km / 19.1 km/l / 45 US mpg / 54 Imp mpg |
| Cooling System | Air cooled |
| Dimensions | Length: 2150 mm / 84.6 in Width: 660 mm / 26.0 in Height: 1280 mm / 50.4 in |
| Dry Weight | 187 kg / 412 lbs |
| Engine | Four stroke, 90°“L” twin cylinder, SOHC, desmodromic, 2 valves per cylinder, belt driven |
| Final Drive | Chain |
| Final Drive Ratio | 2.400:1 (15/36). From 1983: 2.600:1 (15/39) |
| Frame | Tubular steel trellis frame |
| Front Wheel | 3.25 x 18 |
| Front Brakes | 2 x 260 mm Discs, 2 piston calipers |
| Front Suspension | 35mm Marzocchi or Paioli fork |
| Front Tyre | 100/90-18 |
| Fuel Capacity | 18 L / 4.8 US gal / 4.0 Imp gal |
| Gear Ratios | 1st 2.500 / 2nd 1.714 / 3rd 1.333 / 4th 1.074 / 5th 0.931:1 (from 1983: 0.966:1) |
| Ignition | Bosch PTZ Electronic |
| Induction | Dell'OrtoPHF36A |
| Max Power | 44.9 kW / 61 hp @ 9100 rpm |
| Max Torque | 45 Nm / 4.59 kgf-m / 33.2 ft-lb @ 6000 rpm |
| Primary Drive Ratio | 2.226:1 (31/69) |
| Rake | 30o |
| Rear Wheel | 4.00 x 18 |
| Rear Brakes | Single 260 mm disc, 1 piston caliper |
| Rear Suspension | Marzocchi or Paioli dual shock absorbers with 3-way adjustable coil spring |
| Rear Tyre | 110/90-18 |
| Road Test | Cycle World |
| Seat Height | 760 mm / 29.9 in |
| Spark Plug | Champion L81A, L82Y or Bosch W7B |
| Standing ¼ Mile | 13.7 sec / 152.1 km/h / 94.5 mph |
| Starting | Electric |
| Top Speed | 178.5 km/h / 110.9 mph |
| Trail | 129.5 mm / 5.1 in |
| Transmission | 5 Speed |
| Wheelbase | 1450 mm / 57.1 in |
