The 2004 Beta Rev 80 is a lightweight trial motorcycle designed for beginners and younger riders learning fundamental techniques. Its nimble 80cc two-stroke engine and responsive handling make it ideal for navigating tight sections and obstacles, while the progressive rear suspension provides confidence-building stability during training and entry-level competition.
Editorial estimate from the spec sheet - not lab tested
Off-road & trail98%
Cornering30%
City riding5%
Daily riding5%
Touring3%
Two-up0%
Track10%
Best for
Built purely for low-speed technical trials riding over rocks, logs, and steep obstacles, not for any kind of straight-line speed or road use.
Built for
A featherweight, purpose-built two-stroke trials bike with a responsive chassis and brakes tuned for precise, controlled obstacle navigation rather than outright performance.
Not ideal for
This bike is not suitable for riders wanting highway travel, passenger carrying, long-distance touring, or high-speed riding of any kind.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Full specifications
Engine
Capacity
79.6 ccm
Engine type
Single, two-stroke
Bore x stroke
48.0 x 44.0 mm
Compression
14.7:1
Cooling system
Liquid
Fuel system
Carburettor
Ignition
Electronic
Lubrication system
Fuel mix 1.5%
Transmission
Gearbox
6-speed
Transmission type
Manual
Final drive
Chain
Clutch
Wet multi-disc
Dimensions & weight
Wheelbase
1230 mm
Overall length
1925 mm
Overall width
815 mm
Overall height
1110 mm
Dry weight
64.0 kg
Fuel capacity
2.50 litres
Ground clearance
345 mm
Chassis & suspension
Frame
Double craded iron frame
Front suspension
Tube, Ø 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
Front brakes diameter
175 mm
Rear brakes
Single disc
Rear brakes diameter
150 mm
Other
Color options
Red/grey
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
2007
2008
Capacity
80 cc
80 cc
80 cc
80 cc
Dry weight
64 kg
64 kg
64 kg
64 kg
Seat height
—
—
652 mm
652 mm
Fuel capacity
2.5 L
2.5 L
2.5 L
2.5 L
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
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