Engineered by Kawasaki for the naked motorcycle segment, the 2012 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.
On the scales, the ER-6f measures 209 kg (461 lbs) wet (curb), translating to a power-to-weight ratio of 0.34 HP/kg (2.94 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 1,405 mm (55.3 in) wheelbase engineered for quick, flickable steering geometry. The 15.5-liter (4.1 US gal) fuel tank supports practical everyday commuting and weekend road stints.
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-to-Weight
0.34 HP/kg (2.94 kg/HP)
Power Band Window
7,000–8,500 rpm
Standover Height
790 mm (31.1 in)
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. Digital fuel injection with two 38mm Keihin throttle bodies
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
IgnitionDigital CDI
LubricationForced lubrication, semi-dry sump
CoolingLiquid
Transmission
Gearbox6-speed
Final DriveChain (final drive)
ClutchWet multi-disc, manual
Chassis
Frame TypePerimeter, high-tensile steel
Rake25.0°
Trail106 mm (4.2 inches)
Front Suspension41mm hydraulic telescopic fork
Front Travel120 mm (4.7 inches)
Rear SuspensionOffset laydown single-shock with adjustable preload
Rear Travel125 mm (4.9 inches)
Wheelbase1405 mm (55.3 inches)
Ground Clearance145 mm (5.7 inches)
Wheels & Brakes
Front Tyre120/70-ZR17
Rear Tyre160/60-ZR17
Front BrakesDouble disc. Semi-floating 300 mm petal discs. Dual piston. Optional ABS
Front Brake Ø300 mm (11.8 inches)
Rear BrakesSingle disc. 220 mm petal disc. Single-piston. Optional ABS.
Rear Brake Ø220 mm (8.7 inches)
Dimensions & Weight
Weight incl.209.0 kg (460.8 pounds)
Seat Height790 mm (31.1 inches) If adjustable, lowest setting.
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.
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.
