Trials Bikes
2008Beta REV-50
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The 2008 Beta REV 50 is a lightweight trial motorcycle designed for novice and younger riders seeking to develop their skills in the sport. Known for its manageable 60kg weight and low 620mm seat height, this nimble machine excels at navigating technical terrain with precision and control. Its compact 50cc engine delivers predictable power ideal for learning trial riding fundamentals.
- Capacity
- 49.9 ccm
- Engine
- Single, two-stroke
- Gearbox
- 6-speed
- Dry weight
- 60.0 kg
- Seat height
- 620 mm
- Power
- 5.4 HP (4.0 kW)
What’s new for the 2008 Beta REV-50
vs the 2006| Spec | 2006 | 2008 |
|---|---|---|
| Gearbox | 4-speed | 6-speed |
| Front suspension | Hydraulic fork | Hydraulic fork with 38 mm shaft |
| Rear suspension | Monoshock | Monoshock with adjustable spring preload |
| Front brakes | Single disc | Single disc. 2-opposed pistons |
| Rear brakes | Single disc | Single disc. 2-opposed pistons |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built purely for low-speed technical trials riding over obstacles, rocks, and tight terrain, not for road use or general off-road trail riding.
- Built for
- The bike rewards patience, balance, and precise throttle and clutch control over outright power, with a gentle engine tuned to build rider confidence.
- Not ideal for
- This is not suitable for anyone wanting highway travel, passenger carrying, long-distance touring, or a machine with meaningful top-end speed.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Engine
- Capacity
- 49.9 ccm
- Power
- 5.4 HP (4.0 kW)
- Engine type
- Single, two-stroke
- Power/weight ratio
- 0.0900 HP/kg (dry)
- Bore x stroke
- 40.0 x 39.7 mm
- Compression
- 15.2:1
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Ignition
- AET
- Lubrication system
- Mix with fuel 1,5 % (synthetic oil)
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet multi-disc clutch
Dimensions & weight
- Wheelbase
- 1210 mm
- Overall length
- 1850 mm
- Overall width
- 720 mm
- Overall height
- 1070 mm
- Seat height
- 620 mm
- Dry weight
- 60.0 kg
- Fuel capacity
- 2.50 litres
- Ground clearance
- 300 mm
- Reserve fuel capacity
- 0.50 litres
Chassis & suspension
- Frame
- Steel
- Front suspension
- Hydraulic fork with 38 mm shaft
- Rear suspension
- Monoshock with adjustable spring preload
- Front wheel travel
- 160 mm
- Rear wheel travel
- 146 mm
Brakes & wheels
- Front brakes
- Single disc. 2-opposed pistons
- Front brakes diameter
- 175 mm
- Rear brakes
- Single disc. 2-opposed pistons
- Rear brakes diameter
- 150 mm
- Front tyre
- 2.50-19
- Rear tyre
- 3.5-17
Other
- Modifications compared to previous model
- 2008 Technical Modifications New and more evolved engine with combustion parts and exhaust developed for trials use, with the objective of inspiring more confidence in the very young. 6-speed gearbox designed for trials use engine can be started with the bike in gear, to facilitate starting in all situations water cooling with electric fan to ensure better reliability and consistency of performance exhaust assembly modified to optimise match with the new engine components New 21 mm Dell'O
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 | 2006 | 2008 |
|---|---|---|---|
| Capacity | 50 cc | 50 cc | 50 cc |
| Dry weight | — | 60 kg | 60 kg |
| Seat height | — | 620 mm | 620 mm |
| Fuel capacity | — | 2.5 L | 2.5 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 REV-50?
The 2008 Beta REV-50 has a Capacity of 49.9 ccm (3.05 cubic inches).
What engine power does the Beta REV-50 have?
The 2008 Beta REV-50 has a Power of 5.4 HP (4.0 kW).
How many gears does the Beta REV-50 have?
The 2008 Beta REV-50 has a Gearbox of 6-speed.
How much does the Beta REV-50 weigh?
The 2008 Beta REV-50 has a Dry weight of 60.0 kg (132.3 pounds).
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