Kawasaki Z125 Performance Specs (Top Speed | Horsepower | Weight)

The Kawasaki Z125 Performance motorcycle specifications include a 125 cc (7.63 cu in) engine, a 4-speed gearbox, and a listed weight of 146 kg (321.9 lb).

Key specifications

2021-2023Model years
125 ccDisplacement
11.7 Nm @ 7,700 rpmTorque
146 kgWet weight
815 mmSeat height
11 LFuel tank
1,330 mmWheelbase
185 mmGround clearance
Model years covered
202120222023
Year-specific specification changes

The 2021 model is treated as the standard specification. Only later model years with a different supplied value are shown below.

Front brakes
2022Single disc. Petal style disc. Dual piston. ABS.
2023Single disc. 2-piston calipers. ABS.
Fuel system
2022Injection. 28mm
2023Injection. DFI® with 28mm throttle bodies
Gearbox
202220236-speed
Rear brakes
2022Single disc. Petal style disc. Dual piston. ABS.
2023Single disc. 2-piston caliper. ABS.
Rear suspension
20222023Uni-Trak, gas-charged shock with adjustable preload
Wet weight
20222023147 kg (324.1 lb)
Cooling system
2022Liquid
Front wheel travel
202399 mm (3.9 inches)
Rear wheel travel
2023104 mm (4.1 inches)
Valves per cylinder
202220234

How the Kawasaki Z125 Performance 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.

Displacement125 cc
Low 84 ccAverage 687 ccHigh 1,700 cc

About 82% lower than the Kawasaki database average. Around the 11th percentile across Kawasaki models.

Wet weight146 kg
Low 70.3 kgAverage 208 kgHigh 383.1 kg

About 30% lighter than the Kawasaki database average. Around the 22nd percentile across Kawasaki models.

Seat height815 mm
Low 680 mmAverage 801 mmHigh 955 mm

Very close to the Kawasaki database average. Around the 61st percentile across Kawasaki models.

Fuel capacity11 L
Low 3.8 LAverage 15.3 LHigh 24 L

About 28% smaller than the Kawasaki database average. Around the 25th 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.

Displacement11th

125 cc — larger displacement than about 11% of Kawasaki models.

Wet weight22nd

146 kg — heavier than about 22% of Kawasaki models, or lighter than about 78%.

Seat height61st

815 mm — taller than about 61% of Kawasaki models.

Fuel capacity25th

11 L — larger than about 25% 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 length1,935 mm
This bike

1,935

Kawasaki avg

2,122

9% below average.

Overall width740 mm
This bike

740

Kawasaki avg

833

11% below average.

Overall height1,015 mm
This bike

1,015

Kawasaki avg

1,175

14% below average.

Wheelbase1,330 mm
This bike

1,330

Kawasaki avg

1,441

8% below average.

Seat height815 mm
This bike

815

Kawasaki avg

801

Close to average.

Ground clearance185 mm
This bike

185

Kawasaki avg

187

Close to average.

Mechanical overview

Engine layout snapshot

Single cylinder, four-stroke • 125 cc • Air cooled
Chassis snapshot

Wheelbase 1,330 mmSeat 815 mmClearance 185 mm
4-speed • Chain (final drive) • 100/80-17 front / 130/70-17 rear

Additional useful specifications

Front tire size 100/80-17
Rear tire size 130/70-17
Front tire width 100 mm
Front tire aspect ratio 80%
Front rim diameter 17 in
Rear tire width 130 mm
Rear tire aspect ratio 70%
Rear rim diameter 17 in
Bore/stroke ratio 1.23:1 (Oversquare)

Model information

Category Naked bike

Engine specifications

Engine type Single cylinder, four-stroke
Displacement 125 cc (7.63 cu in)
Torque 11.7 Nm (1.2 kgf-m or 8.6 ft.lbs) @ 7,700 rpm
Bore × stroke 58.0 x 47.2 mm (2.3 x 1.9 inches)
Compression ratio 11.7:1
Valves per cylinder 2
Cooling system Air
Fuel system Injection. DFI® with 24mm throttle bodies
Fuel control Double Overhead Cams/Twin Cam (DOHC)
Ignition TCBI w/electronic advance
Starter Electric

Transmission and drivetrain

Gearbox 4-speed
Final drive Chain (final drive)
Clutch Wet Multi-disc

Chassis and suspension

Frame Tubular Diamond ,steel
Front suspension Telescopic fork 37mm
Rear suspension Swingarm, single shock
Front wheel travel 110 mm (4.3 inches)
Rear wheel travel 120 mm (4.7 inches)
Trail 90 mm (3.5 inches)

Brakes, wheels and tires

Front brakes Single disc
Rear brakes Single disc. Petal style disc
Front tire 100/80-17
Rear tire 130/70-17
Wheels Cast aluminium

Dimensions and weight

Wet weight 146 kg (321.9 lb)
Seat height 815 mm (32.1 inches)
Overall length 1,935 mm (76.2 inches)
Overall width 740 mm (29.1 inches)
Overall height 1,015 mm (40.0 inches)
Wheelbase 1,330 mm (52.4 inches)
Ground clearance 185 mm (7.3 inches)

Fuel and emissions

Fuel capacity 11.00 L (2.91 US gal)

Other specifications

Color options Metallic Flat Spark Black/Pearl Flat Stardust White, Metallic Flat Spark Black/Metallic Spark Black Metallic Flat Spark Black/Metallic Spark Black, Candy Lime Green/Metallic Spark Black
Factory warranty 12 Month Limited Warranty

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.