| MODEL | BETA ALP 4.0 2003 - 2004 |
| Year | 2003 - 2004 |
| Engine Type | Four stroke, single cylinder, SOHC, 4 valves |
| Displacement / Capacity | 349 cc / 21.3 cu in |
| Bore X Stroke | 79 x 71.2 mm |
| Compression Ratio | 9.5:1 |
| Cooling System | Air cooled |
| Max Power | 20 kW / 27 hp |
| Max Torque | 28 Nm / 2.9 kgf-m / 21 lb-ft |
| Ignition | Electronic |
| Induction | Mikuni BST 33 |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 6 Speed |
| Clutch | Wet, multi disc |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Tubular steel, double closed cradle |
| Front Suspension | Hydraulic fork, 48 mm, 200 mm / 7.9 in travel |
| Rear Suspension | Single shock, adjustable spring preload, 220 mm / 8.7 in travel |
| Front Brakes | Single 260 mm disc, 2-piston caliper |
| Rear Brakes | Single 220 mm disc, 2-piston caliper |
| DIMENSION SPECS | |
| Overall Length | 2185 mm / 86.0 in |
| Overall Width | 860 mm / 33.9 in |
| Overall Height | 1230 mm / 48.4 in |
| Seat Height | 865 mm / 34 in |
| Wheelbase | 1410 mm / 55.5 in |
| Ground Clearance | 300 mm / 11.8 in |
| Dry Weight | 133 kg / 293 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 90/90-21 |
| Rear Tyre | 140/80-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 10.5 Litres / 2.8 US gal |
| Fuel Consumption | 5.6 L/100 km / 17.7 km/l / 41.6 US mpg |
| Top Speed | 131.1 km/h / 81.5 mph |
The largest air-cooled Alp, built around a 349 cc four-valve single with a six-speed gearbox and electric start. It was sold as a trail bike and a supermoto variant, and is known for a tough engine, long suspension travel and modest top speed.
