The KFX50 is perfect for beginning riders age six years and older. The KFX50 combines an environmentally friendly four-stroke air-cooled engine with solid handling, especially important for young riders.


Displacement 49.5cc
Ignition CDI
Type 4-stroke, Single
Fuel system Keihin PTE 16 carburetor
Valve system SOHC, 2 valves per cylinder
Lubrication Forced lubrication (wet sump)
Compression ratio 10.8:1
Cooling Fan air
Bore and stroke 39.0 x 41.4 mm
Starting Electric with kick back-up


Rear: type Hydraulic drilled discs with single piston caliper
Front: type Dual mechanical drums
Parking: Type Mechanical drum


Overall height 910 mm (35.8 in.)
Overall width 880 mm (34.7 in.)
Fuel capacity 5.5 litres (1.2 gal.)
Overall length 1400 mm (55.1 in.)
Curb mass** 111 kg (245 lbs.)
Seat height 635 mm (25.0 in.)
Wheelbase 965 mm (38.0 in.)
Ground clearance 85 mm (3.4 in.)


Gear Ratio 13.6 (53/15 x 54/14)
Primary reduction ratio 3.03 ~ 0.91 (Belt converter)
Final drive Chain, 2WD
Primary Drive Belt converter
Transmission Automatic, CVT with centrifugal clutch
Final reduction ratio 2.0 (32/16)

Electrical equipment

Brake Light 12 V, 21 W
Charging Output 5 A, 14 V @ 5,000 rpm
Battery 12 V, 4 Ah


Type Double cradle, tubular steel
Caster (rake) 3.8┬║
Tread (Front/Rear) 690 mm (27.2 in.) / 700 mm (27.6 in.)
Tire: rear AT 16 x 8-7 Tubeless
Wheel travel: rear 74 mm (2.9 in.)
Tire: front AT 16 x 8-7 Tubeless
Wheel travel: front 71 mm (2.8 in.)
Trail 13.5 mm (0.5 in.)


Minimum Turning Radius 2.7 m (8.7 ft)


Suspension, rear Uni-Trak Swingarm, single shock
Suspension, front Single A-arm with twin shocks


Warranty 12 mo. warranty

Factory Limited Warranty Owner's Warranty Guide

This model comes with 12 months factory limited warranty. 


Kawasaki keeps the good times rolling with unlimited kilometers/hours of usage. We have you covered with our nationwide, Kawasaki dealer network. Visit any authorized Kawasaki dealer (for this product line) throughout Canada and continental USA for factory warranty coverage.


Click “Owner’s Warranty Guide” for full details regarding Kawasaki’s factory limited warranty coverage.

Kawasaki Protection Plus Learn More

Kawasaki’s own Kawasaki Protection Plus (KPP) goes the distance with available two, three, and four years of unlimited kilometers/hours additional coverage on top of the original Kawasaki limited warranty. That’s up to seven years total coverage depending on the base warranty term!


Feel secure knowing that Kawasaki Protection Plus repairs are performed only at authorized Kawasaki dealers (for this product line) throughout Canada and continental USA using only Kawasaki genuine parts.


Enjoy additional peace of mind with roadside assistance on street legal motorcycles. Buy early - roadside assistance coverage begins when you buy KPP.


No surprises. There’s no deductible fees with KPP for covered repairs.


Click “Learn More” for more details regarding Kawasaki Protection Plus.



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* The Manufacturer's Suggested Retail Price does not include freight, pre-delivery inspection or applicable taxes. The final price is at the discretion of the dealer. Prices and Specifications are subject to change without prior notice. The amount indicated as "Your price" may include an optional instant Mega Cash credit that is deducted from the manufacturer's suggested retail price before taxes. This promotion is time limited and certain conditions will apply. See your dealer for complete details. Offer not available on financed purchases and cannot be combined with any other special offers. The final price is at the discretion of the dealer. Prices and Specifications are subject to change without prior notice.

** Includes all necessary materials and fluids to operate correctly, full tank of fuel (more than 90% of capacity) and tool kit (if supplied)

‡ Power / Torque figures measured at the crankshaft.

The specifications mentioned here apply to and have been achieved by production models under standard operating conditions. We intend only to give a fair description of the vehicle and its performance capabilities but these specifications may not apply to every machine supplied for sale. Kawasaki Heavy Industries, Ltd. reserves the right to alter specifications without prior notice. Equipment illustrated and specifications may vary to meet individual markets. Available colours may vary by market.