Rieju RS2 125 - 2010 Specifications and Reviews

The 2010 Rieju RS2 125 is a lightweight sport bike designed for novice riders and commuters seeking accessible performance. Powered by an air-cooled 125cc single-cylinder engine with a five-speed gearbox, it delivers manageable power for learning riders. Known for its nimble handling and affordable pricing, the RS2 125 excels as an entry-level sportbike in congested urban environments.

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General information

CategorySport
Year2010
ModelRieju RS2 125
 
 

Engine and Transmission Specifications

Exhaust systemExhaust pipe with stainless steel silencer
Transmission type,final driveChain
Gearbox5-speed
Cooling systemAir
Fuel systemCarburettor. Mikuni VM20SS
Bore x stroke54.0 x 54.0 mm (2.1 x 2.1 inches)
Engine typeSingle cylinder, four-stroke
Capacity:125.00 ccm (7.63 cubic inches)

Brakes, suspension, Frame and wheels

Rear brakes diameter220 mm (8.7 inches)
Rear brakesSingle disc
Front brakes diameter280 mm (11.0 inches)
Front brakesSingle disc
Rear tyre dimensions130/80-17
Front tyre dimensions100/80-17
Rear suspensionMono-shock shock absorber
Front suspensionPaioli fork of Ø36mm.
Frame typeTriangular double cradle double steel tube
 
 

Physical measures and capacities

Fuel capacity10.40 litres (2.75 gallons)
Wheelbase1,300 mm (51.2 inches)
Overall width620 mm (24.4 inches)
Overall length1,900 mm (74.8 inches)
Overall height1,060 mm (41.7 inches)
Seat height800 mm (31.5 inches) If adjustable, lowest setting.
Dry weight109.5 kg (241.4 pounds)

Other specs

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

Performance Profile & Rider Fit

Best For

Track55%
City60%
Cornering70%
Daily Riding50%
Touring25%
Passenger25%

Rider Profile

Best ForBest suited to newer or younger riders building skills on a lightweight sport-styled 125cc machine.
PurposeDesigned as an affordable, sporty small-capacity bike for learning, commuting, and playful backroad riding rather than outright performance.
Rider FitIts low seat height and light dry weight make it very manageable for shorter or less experienced riders.
CharacterA nimble, air-cooled single-cylinder sportbike that favors flickable handling over raw speed.
Not Ideal ForNot a good fit for riders wanting high-speed touring, off-road capability, or serious two-up riding.

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

Rider Fit Visualizer

2010 Rieju RS2 125 Rider Ergonomics Assessment

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Feet:

At 800mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2010 Rieju RS2 125, with a cramped knee angle of around 70 degrees and a forward-leaning riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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