ZX 125

1997 Sachs ZX 125 Technical Analysis & Specification Breakdown

Built around Sachs's enduro - offroad motorcycle platform, the 1997 Sachs ZX 125 utilizes a 124.9 cc (7.6 cu in) single cylinder, two-stroke layout. In factory specification, peak output is rated at 14.8 HP (10.8 kW) at 8,000 rpm while maximum torque reaches 12.9 Nm (9.5 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 118.5 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 (7.97 kg per horsepower). Rider ergonomics and chassis geometry center around a 860 mm (33.9 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control.

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.