2020 Kawasaki KX450

45.6 HRS

Engine and transmission

Displacement449.0 ccm (27.40 cubic inches)

Engine typeSingle cylinder, four-stroke

Compression12.5:1

Bore x stroke96.0 x 62.0 mm (3.8 x 2.4 inches)

Fuel systemInjection. DFI with 44mm Keihin throttle body

Fuel controlDouble Overhead Cams/Twin Cam (DOHC)

IgnitionDigital CDI

Cooling systemLiquid

Gearbox5-speed

Transmission typeChain (final drive)

ClutchWet multi-disc, manual

Chassis, suspension, brakes and wheels

Frame typeAluminum perimeter

Rake (fork angle)27.6

Trail122 mm (4.8 inches)

Front suspension49mm inverted telescopic coil-spring fork with 16-way compression damping and 16-way rebound damping

Front wheel travel305 mm (12.0 inches)

Rear suspensionUni-Trak gas charged shock with piggyback reservoir with dual-range (4 turns stepless high speed/19-way low-speed) compression damping, 38-way rebound damping and adjustable preload

Rear wheel travel307 mm (12.1 inches)

Front tire80/100-21

Rear tire120/80-19

Front brakesSingle disc. Semi-floating petal discs

Diameter270 mm (10.6 inches)

Rear brakesSingle disc. Single-piston caliper.

Diameter250 mm (9.8 inches)

Physical measures and capacities

Dry weight105.2 kg (232.0 pounds)

Weight incl. oil, gas, etc110.0 kg (242.5 pounds)

Seat height955 mm (37.6 inches) If adjustable, lowest setting.

Overall height1275 mm (50.2 inches)

Overall length2185 mm (86.0 inches)

Overall width830 mm (32.7 inches)

Ground clearance340 mm (13.4 inches)

Wheelbase1485 mm (58.5 inches)

Fuel capacity6.20 litres (1.64 US gallons)

Other specifications

Color optionsLime Green

StarterElectric