ZX 125

2001 Sachs ZX 125 Technical Analysis & Specification Breakdown

At the heart of the 2001 Sachs ZX 125 enduro - offroad motorcycle, Sachs relies on a 125 cc (7.6 cu in) single cylinder, two-stroke powerplant. In factory specification, peak output is rated at 15 HP (10.9 kW) at 8,000 rpm while maximum torque reaches 13 Nm (9.6 lb-ft) at 7,750 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 120 HP per liter and a 250 rpm working window between peak torque (7,750 rpm) and peak power (8,000 rpm), the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.

On the scales, the ZX 125 measures 118 kg (260 lbs) dry, translating to a power-to-weight ratio of 0.13 HP/kg (7.87 kg per horsepower). Rider ergonomics and chassis geometry center around a 850 mm (33.5 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams, combined with a 1,420 mm (55.9 in) wheelbase engineered for balanced agility and highway composure. The 14.6-liter (3.9 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 106 km/h (66 mph).

Within MotoLibrary's Sachs archive, this model family spans 3 indexed model years from 1997 to 2001, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.