Positioned in Kawasaki's allround motorcycle lineup, the 2009 Kawasaki ER-6f utilizes a 649 cc (39.6 cu in) liquid-cooled twin, four-stroke layout. In factory specification, peak output is rated at 71.1 HP (51.9 kW) at 8,500 rpm while maximum torque reaches 66 Nm (48.7 lb-ft) at 7,000 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 109.6 HP per liter and a 1,500 rpm working window between peak torque (7,000 rpm) and peak power (8,500 rpm), the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.
Within MotoLibrary's Kawasaki archive, this model family spans 12 indexed model years from 2006 to 2017, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
109.6 HP/L
Power Band Window
7,000–8,500 rpm
Engine
Displacement649.0 ccm (39.60 cubic inches)
Engine TypeTwin, four-stroke
Engine DetailsTwin, four-stroke
Power71.1 HP (51.9 kW)) @ 8500 RPM
Torque66.0 Nm (6.7 kgf-m or 48.7 ft.lbs) @ 7000 RPM
Compression11.3:1
Bore x Stroke83.0 x 60.0 mm (3.3 x 2.4 inches)
Valves/Cylinder4
Fuel SystemInjection. 38 mm x 2 Keihin
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
IgnitionDigital
LubricationForced lubrication, semi-dry sump
CoolingLiquid
Transmission
Gearbox6-speed
Final DriveChain (final drive)
ClutchWet multi-disc, manual
Chassis
Rake32.0°
Front Suspension41 mm telescopic fork
Rear SuspensionOffset laydown single-shock with adjustable preload
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.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
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.
