





2019 KX450, LIGHT & FASTER 450cc MOTOCROSSER
To maintain its edge in this fiercely competitive class, the 2019 KX450 benefits from a new engine mounted in its leanest chassis to date, enabling it to turn even quicker lap times, and make it the most powerful machine in the paddock. Complementing its already high performance, a number of new features – including finger-follower valve actuation, electric start and a hydraulic clutch, which are all firsts for a Kawasaki motocrosser – further elevate its race-winning potential.
Designed with mid-level to expert riders in mind, the KX450 motorcycle has always been built with one goal in mind: to put riders on the top step of the podium. And for over 40 years KX brand motocrossers have been extremely successful at doing just that.
Model KX450 (KX450JKF)
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Engine Type 4-stroke, liquid cooled, single cylinder
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Displacement 449 cm³
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Bore x Stroke 96.0 × 62.1 mm
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Compression Ratio 12.5:1
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Valve System DOHC, 4 titanium vavles
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Fuel System Fuel injection: 44 mm x 1
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Ignition Digital DC-CDI
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Starting Electric
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Transmission 5-speed, return
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Clutch Wet multi-disc
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Frame Perimeter, aluminium
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Wheel travel – front 305 mm
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Wheel travel – rear 307 mm
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Tyre Size-front 80/100-21 (51M)
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Tyre Size-rear 120/80-19 (63M)
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Suspension – front 49 mm diameter inverted telescopic fork with adjustable compression and rebound damping and adjustable preload
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Suspension – rear New Uni-Trak with adjustable dual-range (high/low-speed) compression damping, adjustable rebound damping and adjustable preload
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Brakes – front Single 270 mm semi-floating petal disc with dual piston caliper
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Brakes – rear Single 250 mm petal disc with single piston caliper
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L x W x H 2,185 × 830 × 1,275 mm
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Wheelbase 1,485 mm
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Ground Clearance 340 mm
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Seat height 955 mm
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Fuel capacity 6.2 litres
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Curb Mass 110.0 kg (includes full fuel tank, all fluids at optimum levels)
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Weight without fuel 105.4 kg
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Colour Lime Green