These are the known mechanical and performance specifications for your 2021 Kawasaki KX450.
Basic Specs
Engine
Displacement449.0 ccm (27.40 cubic inches)
Type
DetailsSingle cylinder, four-stroke
Max RPM
Compression12.5:1
Bore/Stroke96.0 x 62.0 mm (3.8 x 2.4 inches)
Valves/Cylinder
FuelingInjection. DFI® with 44mm Keihin throttle body
IgnitionDigital CDI with 3 Coupler Options
Exhaust
Lubrication
CoolingLiquid
Fuel Economy & Polution
Fuel Consumption
Fuel Capacity6.20 litres (1.64 US gallons)
Emissions
Chassis
Frame TypeAluminum perimeter
Rake27.6 deg
Trail122 mm (4.8 inches)
Front Suspension49mm inverted telescopic coil-spring fork with 16-way compression damping and 16-way rebound damping
Front 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 Travel307 mm (12.1 inches)
Seat
Seat Height955 mm (37.6 inches) If adjustable, lowest setting.
Alt. Seat Height
Total Height1265 mm (49.8 inches)
Total Length2185 mm (86.0 inches)
Total Width820 mm (32.3 inches)
Ground Clearance340 mm (13.4 inches)
Wheelbase1485 mm (58.5 inches)
Dry Weight105.6 kg (232.7 pounds)
Wet Weight110.0 kg (242.5 pounds)
Wheels & Brakes
Front Tire/Tyre80/100-21
Rear Tire/Tyre120/80-19
Front BrakesSingle disc. Semi-floating petal discs
Front Brake Diameter270 mm (10.6 inches)
Rear BrakesSingle disc. Single-piston caliper.
Rear Brake Diameter250 mm (9.8 inches)
Wheels
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