Engineered by Suzuki for the naked motorcycle segment, the 2012 Suzuki Gladius utilizes a 645 cc (39.4 cu in) oil & air-cooled v2, four-stroke layout. In factory specification, peak output is rated at 72 HP (52.6 kW) at 8,400 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 111.6 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 Gladius measures 202 kg (445 lbs) wet (curb), translating to a power-to-weight ratio of 0.36 HP/kg (2.81 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 1,445 mm (56.9 in) wheelbase engineered for balanced agility and highway composure. The 14.5-liter (3.8 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Suzuki archive, this model family spans 4 indexed model years from 2010 to 2014, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
111.6 HP/L
Power-to-Weight
0.36 HP/kg (2.81 kg/HP)
Standover Height
785 mm (30.9 in)
Engine
Displacement645.0 ccm (39.36 cubic inches)
Engine TypeV2, four-stroke
Engine Details90 and #730; V-twin
Power72.0 HP (52.6 kW)) @ 8400 RPM
Compression11.5:1
Bore x Stroke81.0 x 62.6 mm (3.2 x 2.5 inches)
Fuel SystemInjection
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
LubricationWet sump
CoolingOil & air
Transmission
Gearbox6-speed
Final DriveChain (final drive)
Chassis
Front SuspensionTelescopic, coil spring, oil damped
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
