Beta RR Enduro 4T 125 - Specifications & Review

RR Enduro 4T 125

Article Complete Info

Articleid566985
CategoryEnduro-offroad
MakeBeta
ModelRR Enduro 4T 125
Year2011

Chassis, Suspension, Brakes & Wheels

Frametypesteel double cradle frame
FrontbrakesSingle disc
Frontbrakesdiameter260 mm (10.2 inches)
FrontsuspensionHydraulic fork with ø41 mm shaft
Fronttyre90/90-21
Frontwheeltravel250 mm (9.8 inches)
RearbrakesSingle disc
Rearbrakesdiameter220 mm (8.7 inches)
RearsuspensionMonoshock with adjustable spring preload
Reartyre120/90-18
Rearwheeltravel205 mm (8.1 inches)

Engine & Transmission

Borexstroke54.0 x 54.0 mm (2.1 x 2.1 inches)
ClutchWet multi-plate
Compression10.0:1
CoolingsystemAir
Displacement124.00 ccm (7.57 cubic inches)
DrivelinePrimary Z. 20/68. Final Z. 14/54.
EnginedetailsSingle cylinder, four-stroke
FuelsystemCarburettor. Mikuni UCAL 5Nh ø26-38
Gearbox5-speed
IgnitionElectronic Moriyama F5HH
LubricationsystemForced with pump
TransmissiontypefinaldriveChain

Other Specifications

ColoroptionsRed/black
StarterElectric & kick

Physical Measures & Capacities

Dryweight103.0 kg (227.1 pounds)
Fuelcapacity5.70 litres (1.51 gallons)
Groundclearance335 mm (13.2 inches)
Overallheight1,215 mm (47.8 inches)
Overalllength2,070 mm (81.5 inches)
Overallwidth820 mm (32.3 inches)
Reservefuelcapacity1.00 litres (0.26 gallons)
Weightincloilgasetc110.0 kg (242.5 pounds)

About Beta

Country of Origin: Italy
Founder: Giuseppe Bianchi & Arrigo Tosi (Betamotor S.p.A.)
Best Known For: Trials and enduro dominance; RR/RS enduros and Evo trials line

Company History

Betamotor began in 1905 building bicycles in Florence and evolved into one of the world’s premier off-road motorcycle makers. The company’s DNA is balance and traction—first in observed trials, where featherweight control and throttle finesse matter, and later in enduro, where day-long reliability meets special-stage speed. Beta’s modern RR/RS enduros are renowned for chassis that communicate clearly, engines with tractable midrange, and suspension valving that works out of the crate for real riders, not just pros. The Evo trials line continues to win at the highest levels, feeding lessons about weight distribution and clutch feel back into the enduro range. Unlike some rivals, Beta embraces rider-scale adjustability—map switches, power valve tweaks, and ergonomic options that let owners tailor bikes without a race truck. Historically, Beta personifies Italian craftsmanship aimed at dirt: elegant castings, tidy looms, and field-friendly service. Club racers and trail riders praise how Betas turn fatigue into flow; the bikes reward precise inputs yet forgive mistakes. In a category where specs are loud, Beta’s quiet confidence—how the bike feels between trees—has built a fiercely loyal following.

Other Years

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