Dual-Sport Motorcycles
2021Beta Alp 4.0
38 fields on record
The 2021 Beta Alp 4.0 is a road-legal dual-sport bike made for gentle off-road exploring. Its air-cooled 349cc four-stroke single makes 28.4 hp and 28 Nm through a six-speed gearbox. An 863 mm seat, 133 kg dry weight and a 10.5-litre tank make it a light, easy-going trail companion.
- Capacity
- 349.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 6-speed
- Dry weight
- 133.0 kg
- Seat height
- 863 mm
- Power
- 28.4 HP (20.9 kW)
Other years
2004
2005
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2009
2010
2011
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2021
2022
2023
2024
2025
2026
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Designed primarily for trail riding and dual-sport exploration rather than outright speed or highway cruising.
- Built for
- A light, single-cylinder trail bike with a lively, torquey feel and nimble handling suited to technical terrain and tight trails.
- Not ideal for
- Not a good fit for riders wanting sustained high-speed highway touring or two-up comfort over long distances.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usEngine
- Capacity
- 349.0 ccm
- Power
- 28.4 HP (20.9 kW)
- Torque
- 28.0 Nm (2.9 kgf-m) @ 6250 RPM
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.2135 HP/kg (dry)
- Bore x stroke
- 79.0 x 71.2 mm
- Compression
- 9.5:1
- Cooling system
- Air
- Fuel system
- Carburettor
- Starting
- Electric
- Valves per cylinder
- 4
- Lubrication system
- Forced by pump
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet multi-plate
Dimensions & weight
- Wheelbase
- 1444 mm
- Overall length
- 2208 mm
- Overall width
- 850 mm
- Overall height
- 1240 mm
- Seat height
- 863 mm
- Dry weight
- 133.0 kg
- Fuel capacity
- 10.50 litres
- Ground clearance
- 275 mm
- Reserve fuel capacity
- 3.00 litres
Chassis & suspension
- Frame
- Steel double cradle frame
- Front suspension
- Hydraulic fork with ø46 mm shaft
- Rear suspension
- Monoshock with adjustable spring preload
- Front wheel travel
- 220 mm
- Rear wheel travel
- 220 mm
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 260 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 220 mm
- Front tyre
- 90/90-21
- Rear tyre
- 130/90-18
Other
- Color options
- White Pearl, Orange-Gray
Specs last verified against published sources: .
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 2004 | 2010 | 2015 | 2021 | 2026 |
|---|---|---|---|---|---|
| Capacity | 349 cc | 349 cc | 349 cc | 349 cc | 348 cc |
| Dry weight | 133 kg | 133 kg | 133 kg | 133 kg | 140 kg |
| Seat height | 870 mm | 863 mm | 863 mm | 863 mm | 865 mm |
| Fuel capacity | 10.5 L | 10.5 L | 10.5 L | 10.5 L | 11 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the Beta Alp 4.0?
The 2021 Beta Alp 4.0 has a Capacity of 349.0 ccm (21.30 cubic inches).
What engine power does the Beta Alp 4.0 have?
The 2021 Beta Alp 4.0 has a Power of 28.4 HP (20.9 kW).
How many gears does the Beta Alp 4.0 have?
The 2021 Beta Alp 4.0 has a Gearbox of 6-speed.
What is the torque of the Beta Alp 4.0?
The 2021 Beta Alp 4.0 has a Torque of 28.0 Nm (2.9 kgf-m or 20.7 ft.lbs) @ 6250 RPM.
How much does the Beta Alp 4.0 weigh?
The 2021 Beta Alp 4.0 has a Dry weight of 133.0 kg (293.2 pounds).
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