2021 KFX90



Truckloads of fun

The four stroke KFX90 is the ultimate kids thrill machine. Recommended for entertaining kids 12 years and older it will face up to the toughest of dirt challenges, attacking anything riders throw in its path with grunt and charisma.

Just like the smaller KFX50, the KFX90 has aggressive styling and lines mimicking its larger KFX models. The KFX90 features an electric start, beginner friendly CVT transmissions, a full floorboard design which protects feet and legs, single A-arm front suspension, rear swingarm suspension design, chain final drive, fast 89cc engine and throttle limiting screw, allowing parents to limit throttle opening to help new riders gain experience at slower speeds. The KFX90 comes in a new Bright White.

A fun and stable platform to learn the ropes, the KXF90 is perfect for ATV dirt action. Always operate the KFX90 under direct adult supervision.




  • Durable 89 cm³ air cooled overhead cam engine
  • Electric push button starting with kick start backup
  • Continuously variable automatic transmission (CVT)
  • Electrically operated fuel enrichener
  • Throttle limiting screw
  • Front drum brakes and a rear disc brake
  • Wide stance for stable handling
  • Sporty ATV design
  • Steel chassis for durability
  • Centrifugal clutch
  • A-arm front suspension
  • Swingarm rear suspension
  • Chain drive
  • Full floorboards


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KFX90 (KSF90A)

Engine TypeFan cooled, single cylinder
Displacement90 cm³
Bore X Stroke47.0 x 51.8 mm
Compression Ratio10.1:1
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 Clearance100 mm rear axle
Wheel Travel - front71 mm
Wheel Travel - rear74 mm
Brakes - frontMechanical drum
Brakes - rearDisc with single piston calliper and mechanical drum parking brake
Wheels size - front8.0 x 5.5  
Wheel size - rear8.0 x 7.0
Tyre front18 x 7-8                                                           
Tyre rear18 x 9-8
L X W X H1,425 x 905 x 925 mm
Wheelbase965 mm
Seat Height650 mm
Fuel Capacity5.5 litres
Curb Mass119 kg (includes full fuel tank and all fluids at optimum levels
Vehicle Maximum Load85 kg max load rider only
ColourLime Green
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