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Naked Motorcycles

2011Kawasaki ER-4N

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The 2011 Kawasaki ER-4n is a lightweight naked bike designed for beginner and intermediate riders seeking an affordable, reliable commuter or entry-level sportbike. Its nimble 399cc twin-cylinder engine delivers manageable power with excellent fuel efficiency, while the forgiving handling and low seat height make it ideal for riders building confidence and skills. A factory ABS option was also available.

Capacity
399.0 ccm
Engine
Parallel Twin, four-stroke
Gearbox
6-speed
Wet weight
199.0 kg
Seat height
785 mm
Power
39.9 HP (29.3 kW)
⇄ Compare with another bike + Add to garage All model years
Other years 2011 2012 2013 2014

How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 32Agility 69Comfort 60Off-road 10Touring 45Road manners 68
Off-road & trail10%
Cornering65%
City riding80%
Daily riding80%
Touring45%
Two-up45%
Track30%
Best for
It's designed primarily as an approachable everyday commuter and learner-friendly naked bike rather than a performance or adventure machine.
Built for
The parallel-twin engine and steel diamond frame give it a mellow, predictable, and easygoing character rather than an aggressive or thrilling one.
Not ideal for
It's not the right choice for riders seeking high-speed thrills, serious touring range, or any off-road capability.

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

Will it fit you?

Worked out in your browser - nothing is sent to us
At 785mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2011 Kawasaki ER-4N, with a relaxed knee angle of around 120 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
399.0 ccm
Power
39.9 HP (29.3 kW)
Engine type
Parallel Twin, four-stroke
Power/weight ratio
0.2005 HP/kg (wet)
Bore x stroke
68.4 x 54.3 mm
Compression
11.0:1
Cooling system
Liquid
Fuel system
Injection
Starting
Electric
Ignition
CDI
Valves per cylinder
4
Lubrication system
Wet sump
Torque
Not on record - add it
Transmission
Gearbox
6-speed
Transmission type
Manual
Final drive
Chain
Clutch
Wet, cable operated
Dimensions & weight
Wheelbase
1410 mm
Overall length
2100 mm
Overall width
759 mm
Overall height
1100 mm
Seat height
785 mm
Wet weight
199.0 kg
Fuel capacity
15.50 litres
Ground clearance
145 mm
Dry weight
Not on record - add it
Chassis & suspension
Frame
Semi-double cradle, high-tensile steel
Front suspension
41mm hydraulic catrridege fork
Rear suspension
Single shock, swingarm
Front wheel travel
120 mm
Rear wheel travel
125 mm
Rake (fork angle)
25.0°
Trail
120 mm
Brakes & wheels
Front brakes
Double disc
Front brakes diameter
300 mm
Rear brakes
Single disc
Rear brakes diameter
220 mm
ABS
Optional
Front tyre
120/70-R17
Rear tyre
160/60-R17
Other
Color options
Red

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 2011201220132014
Capacity 399 cc 399 cc 399 cc 399 cc
Seat height 785 mm 790 mm 790 mm 790 mm
Fuel capacity 15.5 L 15.5 L 15.5 L 15.5 L

Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.

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Common questions

What is the engine size of the Kawasaki ER-4N?

The 2011 Kawasaki ER-4N has a Capacity of 399.0 ccm (24.35 cubic inches).

What engine power does the Kawasaki ER-4N have?

The 2011 Kawasaki ER-4N has a Power of 39.9 HP (29.3 kW).

How many gears does the Kawasaki ER-4N have?

The 2011 Kawasaki ER-4N has a Gearbox of 6-speed.

How much does the Kawasaki ER-4N weigh?

The 2011 Kawasaki ER-4N has a Wet weight of 199.0 kg (438.7 pounds).

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