Kawasaki Ninja 400 SE Specs (Top Speed | Horsepower | Weight)

The Kawasaki Ninja 400 SE motorcycle specifications include a 399 cc (24.35 cu in) engine, power of 44.8 hp (32.7 kW) @ 10,000 rpm, and a listed weight of 166 kg (366 lb).

Key specifications

2020-2021Model years
399 ccDisplacement
44.8 hpPower
38.0 Nm @ 8,000 rpmTorque
166 kgDry weight
785 mmSeat height
14 LFuel tank
1,370 mmWheelbase
Model years covered
20202021
Year-specific specification changes

The 2020 model is treated as the standard specification. Only later model years with a different supplied value are shown below.

Front brakes
2021Single disc. Single petal-type disc with 2-piston calipers and optional ABS
Fuel system
2021Injection. DFI® with dual 32mm throttle bodies
Rear brakes
2021Single disc. Single petal-type disc with single-piston caliper and optional ABS

How the Kawasaki Ninja 400 SE compares

This compares the motorcycle with all Kawasaki models in this specifications database. The blue marker is this model and the grey line is the Kawasaki database average.

Engine power44.8 hp
Low 10 hpAverage 73.9 hpHigh 203.3 hp

About 39% lower than the Kawasaki database average. Around the 31st percentile across Kawasaki models.

Displacement399 cc
Low 84 ccAverage 687 ccHigh 1,700 cc

About 42% lower than the Kawasaki database average. Around the 32nd percentile across Kawasaki models.

Seat height785 mm
Low 680 mmAverage 801 mmHigh 955 mm

Very close to the Kawasaki database average. Around the 35th percentile across Kawasaki models.

Fuel capacity14 L
Low 3.8 LAverage 15.3 LHigh 24 L

About 8% smaller than the Kawasaki database average. Around the 37th percentile across Kawasaki models.

This model Kawasaki database average

Kawasaki database percentile rankings

Percentiles show where this motorcycle sits across the Kawasaki specifications database. They are descriptive database rankings, not performance ratings.

Engine power31st

44.8 hp — more powerful than about 31% of Kawasaki models with power data.

Displacement32nd

399 cc — larger displacement than about 32% of Kawasaki models.

Seat height35th

785 mm — taller than about 35% of Kawasaki models.

Fuel capacity37th

14 L — larger than about 37% of Kawasaki fuel tanks in this database.

Dimensions compared with Kawasaki average

Each measurement is compared with the average value across Kawasaki models where that dimension is available.

Overall length1,990 mm
This bike

1,990

Kawasaki avg

2,122

6% below average.

Overall width710 mm
This bike

710

Kawasaki avg

833

15% below average.

Overall height1,125 mm
This bike

1,125

Kawasaki avg

1,175

4% below average.

Wheelbase1,370 mm
This bike

1,370

Kawasaki avg

1,441

5% below average.

Seat height785 mm
This bike

785

Kawasaki avg

801

Close to average.

Ground clearance140 mm
This bike

140

Kawasaki avg

187

25% below average.

Mechanical overview

Engine layout snapshot

Twin, four-stroke • 399 cc • Liquid cooled • 44.8 hp
Chassis snapshot

Wheelbase 1,370 mmSeat 785 mmClearance 140 mm
Chain (final drive) • 110/70-17 front / 150/60-17 rear

Additional useful specifications

Front tire size 110/70-17
Rear tire size 150/60-17
Front tire width 110 mm
Front tire aspect ratio 70%
Front rim diameter 17 in
Rear tire width 150 mm
Rear tire aspect ratio 60%
Rear rim diameter 17 in
Power-to-weight ratio 0.270 hp/kg
Power-to-weight 269.9 hp/tonne
Specific power 112.3 hp/L
Bore/stroke ratio 1.35:1 (Oversquare)

Engine specifications

Engine type Twin, four-stroke
Displacement 399 cc (24.35 cu in)
Power 44.8 hp (32.7 kW) @ 10,000 rpm
Torque 38.0 Nm (3.9 kgf-m or 28.0 ft.lbs) @ 8,000 rpm
Bore × stroke 70.0 x 51.8 mm (2.8 x 2.0 inches)
Compression ratio 11.5:1
Cooling system Liquid
Fuel system Injection
Fuel control Double Overhead Cams/Twin Cam (DOHC)
Ignition TCBI
Starter Electric

Transmission and drivetrain

Final drive Chain (final drive)

Chassis and suspension

Frame Trellius, high- tensile steel
Front suspension Telescopic fork
Rear suspension Horizontal back-link with adjustable spring preload/5.1 in

Brakes, wheels and tires

Front brakes Single disc. Single petal-type disc with 2-piston calipers and ABS
Rear brakes Single disc. Single petal-type disc with single-piston caliper and ABS
Front tire 110/70-17
Rear tire 150/60-17

Dimensions and weight

Dry weight 166 kg (366 lb)
Seat height 785 mm (30.9 inches)
Overall length 1,990 mm (78.3 inches)
Overall width 710 mm (28.0 inches)
Overall height 1,125 mm (44.3 inches)
Wheelbase 1,370 mm (53.9 inches)
Ground clearance 140 mm (5.5 inches)

Fuel and emissions

Fuel capacity 14.00 L (3.70 US gal)

Performance

Power/weight ratio 0.2698 hp/kg

Other specifications

Color options Special Edition Metallic Spark Black/Ninja Graphic

Disclaimer: Specifications may vary by market, trim, production date and optional equipment, and scraped or historical data can contain errors. Comparison and percentile values are calculated from Kawasaki models in this specifications database. Always double-check important specifications against the motorcycle owner’s/service manual and official Kawasaki information before relying on them. Visit the official Kawasaki website.