MZ 125 SX Sixdays 87 - 2007 Specifications and Reviews

The 2007 MZ 125 SX Sixdays 87 is a lightweight 124cc motocross bike designed for entry-level and amateur riders seeking off-road competition. Its compact frame, minimal weight of 127.5 kg, and manageable 14.75 hp output make it ideal for developing riding skills. Known for its reliability and agility in cross-country terrain, this single-cylinder four-stroke excels in enduro-style competitions.

2007
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General information

CategoryCross / motocross
Year2007
ModelMZ 125 SX Sixdays 87

Engine and Transmission Specifications

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 Sixdays 87 dimensions and frame

Rear brakesSingle disc
Front brakesSingle disc
Rear tyre dimensions120/80-18
Front tyre dimensions90/90-;21
Rear suspensionRear monoshock
Front suspensionTelescopic fork
 
 

Speed and acceleration

Power/weight ratio0.1157 HP/kg
Top speed175.0 km/h (108.7 mph)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Color optionsWhite
Reserve fuel capacity3.50 litres (0.92 gallons)
Fuel capacity12.50 litres (3.30 gallons)

Performance Profile & Rider Fit

14.8 hp
Peak Power
108.7 mph
Top Speed

Best For

Track30%
City35%
Cornering60%
Daily Riding25%
Touring20%
Passenger10%

Rider Profile

Best ForBest suited to novice-to-intermediate off-road riders comfortable with a light, tall, single-cylinder enduro-style machine.
PurposeBuilt primarily for trail riding, motocross-style off-road use, and enduro-type events rather than road commuting or touring.
Rider FitThe tall 860mm seat height and lightweight 127.5kg dry chassis favor riders with reasonable inseam length and a preference for standing/aggressive off-road riding positions.
CharacterA nimble, low-displacement dirt-focused single that rewards playful, tossable handling over outright speed or highway stability.
Not Ideal ForNot a good fit for riders seeking high-speed road performance, long-distance comfort, or passenger-carrying capability.

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

Rider Fit Visualizer

2007 MZ 125 SX Sixdays 87 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 2007 MZ 125 SX Sixdays 87, 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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