NSR 125

2003 Honda NSR 125 Technical Analysis & Specification Breakdown

Built around Honda's sport motorcycle platform, the 2003 Honda NSR 125 features a 124.8 cc (7.6 cu in) single cylinder, two-stroke configuration. In factory specification, peak output is rated at 15 HP (10.9 kW) at 8,000 rpm while maximum torque reaches 11.7 Nm (8.6 lb-ft) at 7,000 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 120.2 HP per liter and a 1,000 rpm working window between peak torque (7,000 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 NSR 125 measures 132 kg (291 lbs) dry, translating to a power-to-weight ratio of 0.11 HP/kg (8.8 kg per horsepower). Rider ergonomics and chassis geometry center around a 800 mm (31.5 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance. The 13-liter (3.4 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's Honda archive, this model family spans 6 indexed model years from 1990 to 2003, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.