Sportstar 125

1997 MZ Sportstar 125 Technical Analysis & Specification Breakdown

Built around MZ's naked motorcycle platform, the 1997 MZ Sportstar 125 relies on a 125 cc (7.6 cu in) air-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 12 HP (8.8 kW) at 8,500 rpm while maximum torque reaches 10 Nm (7.4 lb-ft) at 7,500 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 96 HP per liter and a 1,000 rpm working window between peak torque (7,500 rpm) and peak power (8,500 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 Sportstar 125 measures 118 kg (260 lbs) dry, translating to a power-to-weight ratio of 0.1 HP/kg (9.83 kg per horsepower). Rider ergonomics and chassis geometry center around a 820 mm (32.3 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams.