Naked Motorcycles

2006Kawasaki W 650

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The 2006 Kawasaki W650 is a retro-styled middleweight that appeals to riders seeking classic aesthetics with modern reliability. Powered by an air-cooled 675cc parallel-twin engine producing 51 horsepower, it delivers manageable performance ideal for both novice and experienced riders. Known for its authentic vintage charm, lightweight handling, and affordable entry into classic motorcycling, the W650 excels as a versatile everyday commuter and weekend cruiser.

Capacity: 675.0 ccm
Engine: Parallel Twin
Gearbox: 6-speed
Dry weight: 195.0 kg
Seat height: 800 mm
Power: 51.0 HP (37.5 kW)

⇄ Compare with another bike All model years

What’s new for the 2006 Kawasaki W 650

vs the 2005

Spec	2005	2006
Power	50.0 HP (36.8 kW)	51.0 HP (37.5 kW)
Torque	56.0 Nm (5.7 kgf-m or 41.3 ft.lbs)	not listed
Gearbox	5-speed	6-speed

Other years 1999 2000 2001 2002 2003 2004 2005 2006

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail15%

Cornering50%

City riding65%

Daily riding60%

Touring40%

Two-up40%

Track15%

Best for: Built for relaxed classic-style riding and casual commuting rather than outright speed or long-distance touring.
Built for: A charming retro parallel-twin that rewards smooth, unhurried riding with mechanical simplicity and classic air-cooled charm.
Not ideal for: Not a good fit for riders seeking high-speed performance, aggressive cornering capability, or serious off-road use.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

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Your height

Inseam (optional)

Units

At 800mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2006 Kawasaki W 650, with a relaxed knee angle of around 125 degrees and a forward-leaning riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 751-820 mm — Middle Ground →

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Full specifications

Engine

Capacity: 675.0 ccm
Power: 51.0 HP (37.5 kW)
Engine type: Parallel Twin
Power/weight ratio: 0.2615 HP/kg (dry)
Bore x stroke: 72.0 x 83.0 mm
Cooling system: Air
Fuel system: Carburettor
Starting: Electric
Valves per cylinder: 4
Torque: Not on record - add it

Transmission

Gearbox: 6-speed
Transmission type: Manual
Final drive: Chain

Dimensions & weight

Wheelbase: 1455 mm
Seat height: 800 mm
Dry weight: 195.0 kg
Fuel capacity: 15.00 litres

Chassis & suspension

Frame: Double cradle, high tensile steel
Front wheel travel: 130 mm
Rear wheel travel: 85 mm
Rake (fork angle): 24.0°
Trail: 102 mm

Brakes & wheels

Front brakes: Single disc
Front brakes diameter: 300 mm
Rear brakes: Expanding brake (drum brake)
Rear brakes diameter: 160 mm
Front tyre: 100/90-19
Rear tyre: 130/80-18

Other

Color options: Blue, Gold

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

What changed, year to year

Differences highlighted

Specification	1999	2001	2003	2004	2006
Capacity	676 cc	676 cc	675 cc	675 cc	675 cc
Dry weight	200 kg	196 kg	195 kg	195 kg	195 kg
Seat height	800 mm	800 mm	800 mm	800 mm	800 mm
Fuel capacity	15 L	15 L	15 L	15 L	15 L