Terra 125

2009 Derbi Terra 125 Technical Analysis & Specification Breakdown

At the heart of the 2009 Derbi Terra 125 allround motorcycle, Derbi pairs a 124.2 cc (7.6 cu in) liquid-cooled single cylinder, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 15 HP (10.9 kW), transferring power to the rear wheel through a 6-speed gearbox. With a specific output of 120.8 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 Terra 125 measures 117 kg (258 lbs) dry, translating to a power-to-weight ratio of 0.13 HP/kg (7.8 kg per horsepower). Rider ergonomics and chassis geometry center around a 795 mm (31.3 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,440 mm (56.7 in) wheelbase engineered for balanced agility and highway composure. The 12-liter (3.2 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's Derbi archive, this model family spans 5 indexed model years from 2008 to 2012, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.