| Year | 1973 |
| Battery | SAFA 3L3, 13.5 Ah |
| Bore x Stroke | 86 x 75 mm |
| Capacity | 435.7 cc / 26.6 cu in |
| Clutch | Wet, multiplate |
| Compression Ratio | 9.3:1 |
| Cooling System | Air cooled |
| Dimensions | Length: 2120 mm / 83.5 in Width: 940 mm / 37.0 in Height: 1150 mm / 45.3 in |
| Dry Weight | 133 kg / 293 lbs |
| Engine | Four stroke, single cylinder, SOHC, bevel gear driven |
| Final Drive | Chain |
| Final Drive Ratio | 2.917:1 |
| Front Brakes | Drum, 180 mm |
| Front Suspension | 35 mm Marzocchi telescopic fork |
| Front Tyre | 3.50 x 19, Pirelli |
| Fuel Capacity | 13 L / 3.4 US gal / 2.9 Imp gal |
| Gear Ratios | 1st 2.46 / 2nd 1.73 / 3rd 1.35 / 4th 1.10 / 5th 0.97:1 |
| Ignition | Points and coil (electronic from 1973) |
| Induction | Dell'Orto VHB 29 AD |
| Max Power | 23 hp / 16.9 kW @ 6500 rpm |
| Primary Drive Ratio | 2.111:1 (27/57) |
| Rear Brakes | Drum, 160 mm |
| Rear Suspension | Swingarm, dual Marzocchi shocks, 3-way adjustable |
| Rear Tyre | 4.00 x 18, Pirelli |
| Seat Height | 770 mm / 30.3 in |
| Spark plug | Marelli CW260N / Lodge 2HN |
| Starting | Kick |
| Transmission | 5 Speed |
| Wheelbase | 1380 mm / 54.3 in |
