Categories: BetaBeta Alp4

Beta Alp4 (2007-08)

The Beta Alp 4.0 is a motorcycle that was manufactured between the years 2007 and 2008. It has a four-stroke, single-cylinder, SOHC, 4-valve engine, with a capacity of 349cc. The bore and stroke of the engine are 79 x 71.2mm, respectively, and the compression ratio is 9.5:1. The cooling system is air-cooled, and induction is through a Mikuni BST 33 carburetor. The ignition is electronic, and starting is electric. The motorcycle has a maximum power of 20 kW / 27 hp and a maximum torque of 28 Nm / 2.9 kgf-m. The clutch is wet, multi-disc, and the transmission is six-speed. The final drive is through a chain. The frame is a tubular steel, double closed cradle, and the front suspension is a hydraulic fork with 48mm tubes. The rear suspension is a single shock adjustable for spring preload. The front and rear brakes are single discs, and the wheels are alloy with laced spokes. The front tyre is 90/90 -21, and the rear tyre is 140/80 -18. The dimensions of the motorcycle are length: 2185 mm, width: 860 mm, and height: 1230 mm, with a wheelbase of 1410 mm, ground clearance of 300 mm, and seat height of 865 mm. The dry weight of the motorcycle is 133 kg, with a fuel capacity of 10.5 litres and a fuel reserve of 3.5 litres. The fuel consumption is 5.6 L/100 km, and the standing 1/4 mile is 16.1 sec. The top speed of the Beta Alp 4.0 is 131.1 km/h or 81.5 mph.


Technical specifications:

Make Model: Beta Alp 4.0

Year: 2007 – 08

Engine: Four stroke, single cylinder, SOHC, 4 valves

Capacity: 349 cc / 21.3 cu in



Bore x Stroke: 79 x 71.2 mm

Compression Ratio: 9.5:1

Cooling System: Air cooled

Induction: Mikuni BST 33

Ignition: Electronic

Starting: Electric

Max Power: 20 kW / 27 hp

Max Torque: 28 Nm / 2.9 kgf-m 21 lb-ft

Clutch: Wet, multi disc

Transmission: 6 Speed

Final Drive: Chain

Frame: Tubular steel, double closed cradle

Front Suspension: Hydraulic fork, 48mm


Front Wheel Travel: 200 mm / 7.9 in

Rear Suspension: Single shock adjustable spring preload

Rear Wheel Travel: 220 mm / 8.7 in

Front Brakes: Single 260 mm disc, 2-piston caliper

Rear Brakes: Single 220 mm disc, 2-piston caliper

Wheels: Alloy, laced spokes

Front Tyre: 90/90 -21

Rear Tyre: 140/80 -18

Dimensions: Length: 2185 mm / 86.0 in Width: 860 mm / 33.9 in Height: 1230 mm / 48.4 in

Wheelbase: 1410 mm / 55.5 in


Ground Clearance: 300 mm / 1.8 in

Seat Height: 865 mm / 34 in

Dry Weight: 133 kg / 293 lbs

Fuel Capacity: 10.5 Litres / 2.8 US gal

Fuel Reserve: 3.5 Litres / 0.9 US gal

Fuel Consumption: 5.6 L/100 km / 17.7 km/l / 41.6 US mpg

Standing 1/4 Mile: 16.1 sec

Top Speed: 131.1 km/h / 81.5 mph
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