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Home / Motorcycles /Full-Size MX / 2022 KX450

2022 KX450


Kawasaki 2022 KX450 for Sale at Bowen Hills Kawasaki in Bowen Hills, QLD | Specifications and Review Information


More Supercross and Motocross championships than any other manufacturer; the KX name continues to be the bike for champions. The KX450 motorcycle is the largest capacity in the Kawasaki motocross lineup. It is built with the sole purpose of dominating the track. Over the past four decades, Kawasaki have researched what it takes to win and stay on top. The KX450 is the physical representation of these years of motorcycle research. Our dedication to building the ultimate machine is undeniable, and the KX450 represents this to the fullest. Getting on the podium is now up to you!

2022 Kawasaki KX450


A coned disc-spring hydraulic clutch offers light clutch pull and a wide engagement range. Large diameter plates provide enhanced fade resistance.
2022 Kawasaki KX450


Being able to restart your engine quickly after a stall can make or break a race. Powered by a compact and lightweight Li-ion battery and supported by an automatic centrifugal decompression system, all it takes is the push of a button to start up.
2022 Kawasaki KX450


Next-level stopping power matches incredible acceleration capability. Up front, an oversized 270mm Braking petal disc with dual-piston caliper offers sharp response and a strong, consistent feel. In the rear, a large-diameter 250mm Braking petal disc complements the front for race-ready performance.
2022 Kawasaki KX450


From quick, reliable starting to advanced braking power, the KX450 motorcycle offers superior features designed to inspire confidence. What's more, this race-ready machine is backed by decades of championship-proven experience.
2022 Kawasaki KX450


The Uni-Trak rear suspension system features adjustable dual-range (high - and low-speed) compression damping, adjustable rebound damping, and adjustable preload. The result is optimal damping and rear-wheel traction.
2022 Kawasaki KX450


The 49mm Showa Coil Spring Front Fork combined with A-KIT Technology deliver excellent handling. Large-diameter inner tubes allow the use of large damping pistons for race-winning performance while a large-diameter front axle provides exceptional front-wheel traction.
2022 Kawasaki KX450


Take the lead with proven race-winning performance. The highly adjustable suspension package delivers smooth action, firm damping and contributes to optimal traction.
2022 Kawasaki KX450


Use the DFI couplers to choose engine settings to suit your riding style or track conditions. This plug-and-play style system allows quick and easy selection from three pre-programmed fuel injection and ignition mapping settings. Fine tune your ECU setting with factory precision. The KX FI Calibration Kit* features a handheld controller that enables adjustment of fuel mapping and allows storage of presets without a PC. *Sold separately as a Kawasaki Genuine Accessory
2022 Kawasaki KX450


A flat torque curve makes it easier to get on the gas sooner, delivering smooth and powerful acceleration to pass the competition and keep you ahead of the pack.
2022 Kawasaki KX450


A factory-style launch control system helps put the bike's power to the ground for maximum acceleration at the start of the race, making the holeshot yours for the taking.
2022 Kawasaki KX450


The powerful 449cc engine features friction reduction coating on the piston for increased engine performance.
2022 Kawasaki KX450


The KX450 engine delivers broad, useable torque and strong, responsive power across the rev range. From the starting gate to the finish line, this race-ready machine is built to stay ahead of the pack.
Model KX450 (KX450JNFNN)
Engine Type 4-stroke, liquid cooled, single cylinder
Displacement 449 cm3
Bore x Stroke 96.0 x 62.1 mm
Compression Ratio 12.5:1
Valve System DOHC, 4 valves
Fuel System Fuel injection: Ø44 mm x 1
Ignition Digital DC-CDI
Starting Electric
Transmission 5-speed, return
Clutch Wet multi-disc with Brembo hydraulic operation
Frame Tubular, semi-double cradle
Wheel travel - front 305 mm
Wheel travel - rear 307 mm
Tyre Size-front 80/100-21 (51M)
Tyre Size-rear 120/80-19 (63M)
Suspension - front 49 mm inverted telescopic spring fork with adjustable compression and rebound damping
Suspension - rear New Uni-Trak with adjustable dual-range (high/low-speed) compression damping, adjustable rebound damping and adjustable preload
Brakes - front Single 270 mm semi-floating petal disc with dual piston caliper (241mm effective dia)
Brakes - rear Single 240 mm petal disc with single piston caliper (225 effective dia)
L x W x H 2,185 x 820 x 1,265 mm
Wheelbase 1,485 mm
Ground Clearance 340 mm
Seat height 955 mm
Fuel capacity 6.2 litres
Curb Mass 110.2 kg (includes full fuel tank, all fluids at optimum levels)
Colour Lime Green