Beta Minicross R 12 - 2007 Specifications and Reviews

The 2007 Beta MINICROSS R 12 is a lightweight minibike designed for young riders and beginners learning off-road skills. Its 49cc two-stroke engine delivers accessible power through an automatic transmission, making it ideal for entry-level competition and recreational riding. The compact frame and simple mechanical design emphasize durability and ease of maintenance in youth racing environments.

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Engine and Transmission Specifications

ClutchWet automatic centrifugal type
Transmission type,final driveChain
GearboxAutomatic
Cooling systemAir
Lubrication systemmix with fuel 1,5% (with synthetic oil)
IgnitionElectronic
Fuel systemCarburettor. Dell´Orto SHA 14 - 12L
Bore x stroke39.5 x 40.0 mm (1.6 x 1.6 inches)
Compression12.5:1
Engine typeSingle cylinder, two-stroke
Capacity:49.00 ccm (2.99 cubic inches)

CategoryMinibike, cross
Year2007
ModelBeta MINICROSS R 12

Brakes, suspension, Frame and wheels

Rear brakes diameter90 mm (3.5 inches)
Rear brakesExpanding brake (drum brake). Mechanical drive drum 90 mm
Front brakes diameter90 mm (3.5 inches)
Front brakesExpanding brake (drum brake). Mechanical drive drum 90 mm
Front suspension travel30 mm (1.2 inches)
Front suspensionMechanical fork with 30 mm shaft
Frame typeSteel tubing
 
 

Physical measures and capacities

Reserve fuel capacity0.30 litres (0.08 gallons)
Fuel capacity2.00 litres (0.53 gallons)
Wheelbase1,100 mm (43.3 inches)
Ground clearance280 mm (11.0 inches)
Overall width670 mm (26.4 inches)
Overall length1,580 mm (62.2 inches)
Overall height990 mm (39.0 inches)
Seat height740 mm (29.1 inches) If adjustable, lowest setting.
Dry weight46.0 kg (101.4 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Color optionsRed

Performance Profile & Rider Fit

Best For

Track60%
City5%
Cornering55%
Daily Riding10%
Touring5%
Passenger0%

Rider Profile

Best ForThis is a purpose-built training minibike intended for young or novice riders learning off-road fundamentals under supervision.
PurposeIt exists to teach throttle control, balance and off-road technique on a scaled-down motocross-style machine.
Rider FitIts tiny 46 kg dry weight and low 740 mm seat height make it manageable for small, lightweight riders rather than adults.
CharacterThe automatic centrifugal clutch and simple two-stroke single give it a forgiving, playful, easy-to-ride nature suited to dirt lots and small tracks.
Not Ideal ForIt is not suitable for adult riders, road use, passengers, or anyone seeking real speed or long-distance capability.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Reviews

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