Sachs ZX 125 - 2001 Specifications and Reviews

The 2001 Sachs ZX 125 is a lightweight enduro bike designed for novice and intermediate off-road riders seeking an affordable entry point into dirt biking. Its nimble two-stroke engine delivers responsive power suitable for trail riding and casual competition, while generous suspension travel provides confidence on rough terrain. Known for its reliability and ease of maintenance, the ZX 125 remains a popular choice for riders developing their off-road skills.

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General information

CategoryEnduro / offroad
Year2001
ModelSachs ZX 125
 
 

Engine and Transmission Specifications

Transmission type,final driveChain
Gearbox6-speed
Fuel systemCarburettor
Bore x stroke56.0 x 50.7 mm (2.2 x 2.0 inches)
Top speed106.0 km/h (65.9 mph)
Torque13.00 Nm (1.3 kgf-m or 9.6 ft.lbs) @ 7750
Power15.00
Engine typeSingle cylinder, two-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 diameter260 mm (10.2 inches)
Front brakesSingle disc
Rear suspension travel250 mm (9.8 inches)
Front suspension travel240 mm (9.4 inches)

Physical measures and capacities

Fuel capacity14.60 litres (3.86 gallons)
Wheelbase1,420 mm (55.9 inches)
Seat height850 mm (33.5 inches) If adjustable, lowest setting.
Power/weight ratio0.1271 HP/kg
Dry weight118.0 kg (260.1 pounds)
 
 

Other specs

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

Performance Profile & Rider Fit

15 hp
Peak Power
65.9 mph
Top Speed

Best For

Track15%
City40%
Cornering55%
Daily Riding35%
Touring20%
Passenger15%

Rider Profile

Best ForThis lightweight two-stroke enduro suits beginner to intermediate riders who want a nimble, forgiving bike to learn offroad skills on.
PurposeBest suited to trail riding, light offroad exploration, and playful low-speed technical terrain rather than any kind of speed or distance work.
Rider FitIts low dry weight and tall but narrow seat make it easy to manage standing up or paddling through rough ground, though the 850mm seat height demands reasonable inseam length.
CharacterA buzzy, high-revving two-stroke single that rewards active riding, frequent gear changes, and a willingness to keep the engine spinning for any real performance.
Not Ideal ForNot for riders wanting highway comfort, passenger capability, or sustained high-speed touring.

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

Rider Fit Visualizer

2001 Sachs ZX 125 Rider Ergonomics Assessment

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Feet:

At 850mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with tip-toe one foot on the 2001 Sachs ZX 125, 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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