EC 300

2003 GAS GAS EC 300 Technical Analysis & Specification Breakdown

At the heart of the 2003 GAS GAS EC 300 enduro - offroad motorcycle, GAS GAS features a 294.7 cc (18 cu in) liquid-cooled single cylinder, two-stroke configuration. In factory specification, peak output is rated at 50.6 HP (36.9 kW) at 7,340 rpm while maximum torque reaches 49.2 Nm (36.3 lb-ft) at 6,890 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 171.7 HP per liter and a 450 rpm working window between peak torque (6,890 rpm) and peak power (7,340 rpm), the engine character is placing it firmly in high-revving supersport territory where top-end breathing dominates.

On the scales, the EC 300 measures 102.5 kg (226 lbs) dry, translating to a power-to-weight ratio of 0.49 HP/kg (2.03 kg per horsepower). Rider ergonomics and chassis geometry center around a 940 mm (37 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,475 mm (58.1 in) wheelbase engineered for balanced agility and highway composure. The 9.5-liter (2.5 US gal) fuel tank paired with a rated consumption of 7.12 L/100 km provides an estimated theoretical range of roughly 133 km (83 miles) between fill-ups, while factory top speed is listed at 137 km/h (85 mph).

Within MotoLibrary's GAS GAS archive, this model family spans 12 indexed model years from 2002 to 2025, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.