Gladius 400

2011 Suzuki Gladius 400 Technical Analysis & Specification Breakdown

Built around Suzuki's naked motorcycle platform, the 2011 Suzuki Gladius 400 utilizes a 398 cc (24.3 cu in) oil & air-cooled v2, four-stroke layout. In factory specification, peak output is rated at 55 HP (40.1 kW) at 11,000 rpm while maximum torque reaches 41 Nm (30.2 lb-ft) at 8,500 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 138.2 HP per liter and a 2,500 rpm working window between peak torque (8,500 rpm) and peak power (11,000 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 Gladius 400 measures 206 kg (454 lbs) dry, translating to a power-to-weight ratio of 0.27 HP/kg (3.75 kg per horsepower). Rider ergonomics and chassis geometry center around a 785 mm (30.9 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,455 mm (57.3 in) wheelbase engineered for balanced agility and highway composure. The 14-liter (3.7 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's Suzuki archive, this model family spans 3 indexed model years from 2010 to 2017, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.