MZ 125 SX - 2009 Specifications and Reviews

The 2009 MZ 125 SX is a lightweight enduro bike designed for novice riders and youth seeking entry-level off-road performance. Its compact 124cc single-cylinder engine delivers modest power suitable for trail riding and learning fundamental dirt bike skills. Known for its manageable weight and low seat height, it excels as an affordable, accessible platform for building off-road experience.

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General information

CategoryEnduro / offroad
Year2009
ModelMZ 125 SX

Engine and Transmission Specifications

Transmission typefinal driveChain
StarterElectric
Torque11.70
Power14.75
Stroke4
Engine typeSingle cylinder
Capacity:124.00 ccm (7.57 cubic inches)
 
 

Physical measures and capacities

Wheelbase1,440 mm (56.7 inches)
Seat height860 mm (33.9 inches) If adjustable, lowest setting.
Dry weight127.5 kg (281.1 pounds)
 
 

MZ 125 SX dimensions and frame

Rear brakesSingle disc
Front brakesSingle disc
Rear tyre dimensions120/80-18
Front tyre dimensions90/90-21
Rear suspensionSingle shock
Front suspensionTelescopic fork

Speed and acceleration

Power/weight ratio0.1157 HP/kg
Top speed110.0 km/h (68.4 mph)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Color optionsGreen, black, multicolored.
Reserve fuel capacity3.60 litres (0.95 gallons)
Fuel capacity12.50 litres (3.30 gallons)

Performance Profile & Rider Fit

14.8 hp
Peak Power
68.4 mph
Top Speed

Best For

Track15%
City45%
Cornering55%
Daily Riding40%
Touring20%
Passenger15%

Rider Profile

Best ForWell suited to beginner and intermediate riders looking to build off-road skills without being overwhelmed by power.
PurposeDesigned primarily for light enduro and trail riding rather than speed or long-distance travel.
Rider FitThe tall seat height and slim, lightweight chassis favor riders who are comfortable standing on pegs and managing a top-heavy stance at low speed.
CharacterA nimble, low-powered single-cylinder enduro that rewards momentum-based riding and confident throttle control over raw acceleration.
Not Ideal ForNot a good fit for riders wanting highway speeds, passenger comfort, or extended paved touring.

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

Rider Fit Visualizer

2009 MZ 125 SX Rider Ergonomics Assessment

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

Feet:

At 860mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with tip-toe one foot on the 2009 MZ 125 SX, with a cramped knee angle of around 75 degrees and an upright 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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