DT 125

2003 Yamaha DT 125 Technical Analysis & Specification Breakdown

Engineered by Yamaha for the enduro - offroad motorcycle segment, the 2003 Yamaha DT 125 features a 124 cc (7.6 cu in) single cylinder, two-stroke configuration. In factory specification, peak output is rated at 13.9 HP (10.1 kW) at 7,000 rpm while maximum torque reaches 14.2 Nm (10.5 lb-ft) at 7,000 rpm. With a specific output of 112.1 HP per liter, 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 DT 125 measures 116 kg (256 lbs) dry, translating to a power-to-weight ratio of 0.12 HP/kg (8.35 kg per horsepower). Rider ergonomics and chassis geometry center around a 855 mm (33.7 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,415 mm (55.7 in) wheelbase engineered for quick, flickable steering geometry. The 10-liter (2.6 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's Yamaha archive, this model family spans 2 indexed model years from 1973 to 2003, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.