Rieju RR 125 Fun Bike - Specifications & Review

RR 125 Fun Bike

Article Complete Info

Articleid323263
CategoryCross-motocross
MakeRieju
ModelRR 125 Fun Bike
Year1998

Chassis, Suspension, Brakes & Wheels

FrametypeTubeular
FrontbrakesSingle disc. AJP
Frontbrakesdiameter220 mm (8.7 inches)
FrontsuspensionInverted forks 32mm Showa®
Fronttyre80/69-j56
RearbrakesSingle disc. AJP 2 piston
Rearbrakesdiameter185 mm (7.3 inches)
RearsuspensionMonoshock Gas
Reartyre110/62-61j

Engine & Transmission

Borexstroke56.0 x 50.6 mm (2.2 x 2.0 inches)
ClutchWet plate
Compression9.0:1
CoolingsystemLiquid
Displacement125.00 ccm (7.63 cubic inches)
EnginedetailsSingle cylinder, two-stroke
FuelsystemCarburettor. Dell´Ortho PHBL 26
Gearbox6-speed
IgnitionElectric
Power9.50 HP (6.9 kW)) @ 7200 RPM
Topspeed80.0 km/h (49.7 mph)
TransmissiontypefinaldriveChain

Other Specifications

ColoroptionsBlack
CommentsCooling has no fan! Gasgas trials engine. Very rear due to engine over heating. Quick off the mark!
StarterKick

Physical Measures & Capacities

Dryweight95.0 kg (209.4 pounds)
Fuelcapacity5.50 litres (1.45 gallons)
Powerweightratio0.1000 HP/kg

About Rieju

Country of Origin: Spain
Founder: Luis Riera & Jaime Juanola
Best Known For: Lively 50–125 cc roadsters and enduros; later hard-enduro two-strokes (MR/Enduro series)

Company History

Rieju has been part of Spain’s small-displacement fabric since the 1940s, earning a reputation for agile frames and engines that make the most of limited cubic centimeters. Generations learned clutch control and line choice on Rieju 50–125s that balanced playful power with credible brakes and suspension. The brand’s modern chapter leans into enduro, where acquisitions and partnerships brought proven two-stroke platforms under the Rieju badge. Set up for Iberian terrain—rocky climbs, dusty singletrack—the MR/Enduro models emphasize tractable bottom-end, sensible gearing, and real-world protection (radiator guards, skid plates) from the factory. Rieju listens to club paddocks: jetting/EFI maps, seat foam, and lever feel evolve quickly with rider feedback. Historically, the company exemplifies Spain’s rider-centric industry—machines that teach, reward finesse, and survive hard weekends. Whether buzzing to school or threading a ravine, a Rieju feels like a willing accomplice rather than a dare, which is why the marque remains woven into the country’s off-road culture.

Other Years

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