| MODEL | MAICO 490 ALPHA 1 1982 |
| Year | 1982 |
| Engine Type | Single cylinder, two-stroke |
| Displacement / Capacity | 488 cc / 29.8 cu in |
| Bore X Stroke | 86.5 x 83 mm |
| Compression Ratio | 12:1 |
| Cooling System | Air cooled |
| Max Power | 32.1 kW / 43.7 hp @ 6500 rpm |
| Max Torque | 36.5 Nm / 26.9 ft-lb @ 6000 rpm |
| Ignition | Motoplat pointless electronic |
| Induction | Bing 40 mm carburettor |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | Oil in fuel, premix (20:1) |
| Gear Box | 5-speed, constant mesh |
| Clutch | Wet, multi-disc |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Dual down tube, full cradle, chrome-moly |
| Front Suspension | Leading axle air/spring fork; 305 mm / 12 in travel |
| Rear Suspension | Corte & Cosso reservoir gas shock, adjustable damping and preload; 320 mm / 12.6 in travel |
| Front Brakes | Single leading shoe drum, 136 mm |
| Rear Brakes | Single leading shoe drum, 160 mm |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 960 mm / 37.7 in |
| Wheelbase | 1510 mm / 59.5 in |
| Ground Clearance | 372 mm / 14.6 in |
| Dry Weight | 108 kg / 237 lbs |
| Wet Weight | 113 kg / 249 lbs |
| WHEEL SPECS | |
| Front Tyre | 3.00 x 21 in Metzeler |
| Rear Tyre | 4.50 x 18 in Metzeler |
| FUEL SYSTEM | |
| Fuel Capacity | 9.5 Litres / 2.5 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The Alpha 1 was the mild-mannered 490 cc air-cooled motocross-based two-stroke of the early 1980s, with drum brakes and a reservoir gas rear shock. Its tune is gentler than the E version, trading peak power for a manageable spread of torque.
