Trials Bikes
2004Beta REV-50
17 fields on record
The 2004 Beta Rev 50 is a lightweight trial motorcycle designed for beginner and youth riders learning fundamental trials skills. Its 50cc two-stroke engine delivers responsive power ideal for navigating obstacles and technical terrain, while the compact frame and manageable suspension geometry provide confidence-building control. This model is best known for offering accessible entry-level trials performance with reliable simplicity.
- Capacity
- 49.9 ccm
- Engine
- Single, two-stroke
- Gearbox
- 4-speed
- Dry weight
- Not on record
Know it? Add it → - Seat height
- Not on record
Know it? Add it → - Power
- 5.4 HP (4.0 kW)
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
- Bore x stroke
- 40.0 x 39.7 mm
- Compression
- 15.2:1
- Cooling system
- Liquid
- Fuel system
- Carburettor
Transmission
- Gearbox
- 4-speed
- Transmission type
- Manual
- Final drive
- Chain
Chassis & suspension
- Front suspension
- Tube, 33 mm
- Rear suspension
- Progressive hydraulic mono shock absorber
- Front wheel travel
- 160 mm
- Rear wheel travel
- 146 mm
Brakes & wheels
- Front brakes
- Single disc
- Rear brakes
- Single disc
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 2004 Beta REV-50 has a Capacity of 49.9 ccm (3.05 cubic inches).
What engine power does the Beta REV-50 have?
The 2004 Beta REV-50 has a Power of 5.4 HP (4.0 kW).
How many gears does the Beta REV-50 have?
The 2004 Beta REV-50 has a Gearbox of 4-speed.
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