Beta RR 125 4T - 2006 Specifications and Reviews

The 2006 Beta RR 125 4T is a lightweight enduro bike ideal for beginner and intermediate off-road riders seeking an accessible entry into trail riding. Its air-cooled single-cylinder engine delivers manageable power while the compact 103kg frame and responsive handling make it nimble through technical terrain. Best known for reliable performance and user-friendly characteristics perfect for learning fundamental off-road skills.

2006
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General information

CategoryEnduro / offroad
Year2006
ModelBeta RR 125 4T

Engine and Transmission Specifications

Gearbox5-speed
Cooling systemAir
IgnitionElectronic
Fuel controlSOHC
Fuel systemCarburettor. Mikuni UCAL 5Nh 26-38
Bore x stroke54.0 x 54.0 mm (2.1 x 2.1 inches)
Compression10.0:1
Stroke4
Engine typeSingle cylinder
Capacity:124.00 ccm (7.57 cubic inches)
 
 

Physical measures and capacities

Wheelbase1,370 mm (53.9 inches)
Ground clearance320 mm (12.6 inches)
Overall width820 mm (32.3 inches)
Overall length2,070 mm (81.5 inches)
Overall height1,215 mm (47.8 inches)
Dry weight103.0 kg (227.1 pounds)

Beta RR 125 4T dimensions and frame

Rear brakes diameter220 mm (8.7 inches)
Rear brakesSingle disc
Front brakes diameter260 mm (10.2 inches)
Front brakesSingle disc
Rear tyre dimensions120/90-18
Front tyre dimensions80/90-21
Rear suspension travel270 mm (10.6 inches)
Rear suspensionMonoshock with adjustable spring preload
Front suspension travel250 mm (9.8 inches)
Front suspensionHydraulic fork
 
 

Speed and acceleration

Reserve fuel capacity1.00 litres (0.26 gallons)
Fuel capacity6.00 litres (1.59 gallons)

Other specs

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

Performance Profile & Rider Fit

Best For

Track20%
City35%
Cornering55%
Daily Riding30%
Touring20%
Passenger10%

Rider Profile

Best ForBest suited to novice-to-intermediate off-road riders, thanks to its light weight and modest, easy-to-manage 125cc four-stroke power delivery.
PurposeBuilt as a genuine enduro trail bike for tackling technical dirt, tight woods sections, and rough terrain rather than road speed or distance.
Rider FitIts low dry weight and tall, narrow enduro chassis make it easy to muscle around and flick over obstacles, though the 320mm ground clearance and seat height favor riders comfortable standing on pegs.
CharacterA nimble, willing little trail bike that rewards momentum and skillful line choice over outright horsepower.
Not Ideal ForNot a good fit for riders wanting sustained highway speeds, long-distance touring comfort, or a machine capable of carrying a passenger.

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

Rider Reviews

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