Thruxton 900

2004 Triumph Thruxton 900 Technical Analysis & Specification Breakdown

Built around Triumph's classic motorcycle platform, the 2004 Triumph Thruxton 900 pairs a 865 cc (52.8 cu in) air-cooled twin, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 69 HP (50.4 kW) at 7,250 rpm while maximum torque reaches 72 Nm (53.1 lb-ft) at 5,750 rpm, transferring power to the rear wheel through a 5-speed gearbox. With a specific output of 79.8 HP per liter and a 1,500 rpm working window between peak torque (5,750 rpm) and peak power (7,250 rpm), the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

On the scales, the Thruxton 900 measures 205 kg (452 lbs) dry, translating to a power-to-weight ratio of 0.34 HP/kg (2.97 kg per horsepower). Rider ergonomics and chassis geometry center around a 790 mm (31.1 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,477 mm (58.1 in) wheelbase engineered for balanced agility and highway composure. The 16-liter (4.2 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's Triumph archive, this model family spans 3 indexed model years from 2004 to 2006, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.