Rieju Marathon 125 SM - 2010 Specifications and Reviews

The 2010 Rieju Marathon 125 SM is a lightweight streetfighter-style motorcycle ideal for urban commuters and new riders seeking nimble handling and ease of use. Its 107 kg weight and 900 mm seat height make it accessible, while the electric starter and 6.3-litre fuel tank provide practical everyday convenience. Known for its agile street credentials, this 125cc naked bike excels in city riding with responsive single-disc brakes and manageable performance.

2010
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General information

CategorySuper motard
Year2010
ModelRieju Marathon 125 SM
 
 

Engine and Transmission Specifications

Exhaust systemMuffler
Gearbox6-speed
Cooling systemLiquid
Lubrication systemSeparate mixture
Fuel systemCarburettor. KEIHIN CVEK 30
Bore x stroke52.0 x 58.6 mm (2.0 x 2.3 inches)
Engine typeSingle cylinder, four-stroke
Capacity:125.00 ccm (7.63 cubic inches)

Brakes, suspension, Frame and wheels

Rear brakes diameter200 mm (7.9 inches)
Rear brakesSingle disc
Front brakes diameter300 mm (11.8 inches)
Front brakesSingle disc
Rear tyre dimensions130/70-17
Front tyre dimensions100/80-17
Rear suspensionMono-shock
Front suspensionPAIOLI fork of 40mm.
Frame typeDouble cradle. Highly resistant steel perimeter

Physical measures and capacities

Fuel capacity6.30 litres (1.66 gallons)
Wheelbase1,395 mm (54.9 inches)
Overall length2,150 mm (84.6 inches)
Overall height1,180 mm (46.5 inches)
Seat height900 mm (35.4 inches) If adjustable, lowest setting.
Dry weight107.0 kg (235.9 pounds)
 
 

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Color optionsWhite/red, black
StarterElectric

Performance Profile & Rider Fit

Best For

Track55%
City80%
Cornering80%
Daily Riding55%
Touring20%
Passenger25%

Rider Profile

Best ForWell suited to newer and intermediate riders thanks to its light weight, small displacement, and manageable power delivery.
PurposeDesigned as a supermoto-styled commuter and fun urban runabout rather than a long-distance or high-speed machine.
Rider FitIts low dry weight and tall but narrow seat make it easy to manage for riders of average or smaller stature.
CharacterA light, flickable, playful small-bore supermoto that rewards revving and aggressive cornering over raw straight-line speed.
Not Ideal ForNot a good fit for riders wanting sustained highway speeds, long-range touring comfort, or serious two-up travel.

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

Rider Fit Visualizer

2010 Rieju Marathon 125 SM Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 900mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2010 Rieju Marathon 125 SM, with a relaxed knee angle of around 140 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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