Rieju SMX 125 4T - 2005 Specifications and Reviews

The 2005 Rieju SMX 125 4T is a lightweight super motard ideal for beginner and young riders seeking an affordable, nimble streetbike. Its compact 125cc four-stroke engine delivers reliable 14.5 horsepower with manageable handling characteristics. Known for its accessibility and fun factor, this Spanish-made machine excels in urban commuting and casual weekend riding.

2005
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Engine and Transmission Specifications

Gearbox5-speed
Lubrication systemMixture of gasoline and oil to 2%
Valves per cylinder2
Fuel systemCarburettor. MIKUNI VM 20SS
Bore x stroke54.0 x 54.0 mm (2.1 x 2.1 inches)
Power14.50
Stroke4
Engine typeSingle cylinder
Capacity:50.00 ccm (3.05 cubic inches)
 
 

Physical measures and capacities

Wheelbase1,332 mm (52.4 inches)
Overall width800 mm (31.5 inches)
Overall length2,050 mm (80.7 inches)
Overall height1,170 mm (46.1 inches)

Rieju SMX 125 4T dimensions and frame

Rear brakes diameter200 mm (7.9 inches)
Rear brakesSingle disc
Front brakes diameter260 mm (10.2 inches)
Front brakesSingle disc
Rear tyre dimensions120/80-17
Front tyre dimensions100/80-17
Rear suspensionPaioli
Front suspensionPaioli
Frame typePerimetral chassis, steel.

Speed and acceleration

Fuel capacity8.40 litres (2.22 gallons)

CategorySuper motard
Year2005
ModelRieju SMX 125 4T
 
 

Other specs

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

Performance Profile & Rider Fit

14.5 hp
Peak Power (est.)

Best For

Track30%
City75%
Cornering60%
Daily Riding55%
Touring20%
Passenger25%

Rider Profile

Best ForNote: the listed capacity of 50cc conflicts with the '125' in the model name, so specs may be mismatched or refer to a smaller-displacement variant; this profile assumes a small-displacement supermotard-style commuter.
PurposeBest suited as a lightweight, nimble runabout for urban streets and short playful rides rather than serious speed or distance work.
Rider FitIts low weight and compact dimensions make it accessible and easy to manage for smaller or less experienced riders.
CharacterA cheeky, flickable little machine that rewards playful riding through tight turns and city traffic rather than outright performance.
Not Ideal ForNot a good fit for riders wanting highway speed, long-distance touring comfort, or genuine off-road capability.

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

Rider Reviews

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