2021 KFX50


Start them right with a Kawasaki fun ATV

Start them on the right track with the fun of the Kawasaki KFX50.

Designed specifically with little bodies in mind, the KFX50 boasts a range of user-friendly features such as a built-in throttle limiter, automatic transmission and low seat height.

For extra parental control and safety, the Kawasaki KX50 ATV is fitted with a second rear-mounted, lanyard kill switch.  This enables the parent to follow behind and shut the engine down by pulling on the lanyard.

The KFX50 is the kid sized ATV that will bring them years of fun and provide a safe learn-to-ride environment.


  • Parental Controls with lanyard kill switch
  • CVT (Auto) Transmission
  • Electric Start - ready to go
  • Kid Size - built for learning to ride
  • 49cm³ Single Cylinder
  • 4-Stroke Engine

Parental Controls

A throttle limiting screw located on the top of the throttle housing allows parents to limit the throttle opening to help new riders gain experience at slower speeds.

A removable collar installed in the CVT limits travel of the driven converter, producing a lower overall drive ratio to reduce speed.

Keyed ignition switch prevents starting without a key.

Ignition cut-off tether allows an adult to immediately stop engine operation by pulling on the tether line.

Read and understand the Owner Manual recommendation on the minimum age of operators of 6+ years.

Always operated under direct adult supervision.

Always wear an approved helmet and protective riding apparel.

Continuously Variable Transmission (CVT)

Simple operation for young riders.

The CVT eliminates gear shifting to simplify operation.

The young rider can simply push the throttle and go.

The centrifugal clutch on the driven converter allows engine braking under certain conditions for added control and slowing power when travelling down hills.

Electric Start with Interlock

Easy push button start with the key switched on.

The interlock feature only allows the engine to be cranked when the parking brake is engaged.

The sealed battery requires minimal maintenance.

The KFX50 has a back up kick starter system if the battery does go flat.


Full floorboards provide sure footing and help to keep the young rider's feet and legs away from the wheels.


Single A-arm front suspension with twin shock absorbers. Single Shock rear suspension system.


Responsive braking performance from dual front drums and single rear disc.


The control levers on the KFX50 are sized to suit young riders and placed within reach of the ATV rider.

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KFX50 (KSF50B)

Engine TypeFan cooled, single cylinder
Displacement49.5 cm³
Bore X Stroke39.0 x 41.4 mm
Compression Ratio10.8:1
Valve SystemSOHC 2 valve
Fuel SystemKeihin PTE 16
IgnitionSolid state CDI
StartingElectric and kick starter backup
BatteryMF, YTX5L-BS, 12V, 4 Ah
TransmissionContinuously variable transmission, centrifugal clutch.
Final DriveChain 2WD
Suspension - frontIndependent, single A-arm
Suspension - rearSwingarm
Ground Clearance85 mm rear axle
Wheel Travel - front71 mm
Wheel Travel - rear74 mm 
Brakes - frontMechanical drum
Brakes - rearDisc with single piston caliper and mechanical drum parking brake
Wheels size - front7.0 x 5.0                                                                           
Wheel size - rear7.0 x 5.0
Tyre front16 x 8-7 
Tyre rear16 x 8-7
L X W X H1,400 x 880 x 910 mm
Wheelbase965 mm
Seat Height635 mm
Fuel Capacity5.5 litres
Curb Mass111 kg (includes full fuel tank all fluids at optimum levels)
Vehicle Maximum Load85 kg max load rider only
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