Kawasaki KX450F

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Kawasaki KX450 (KX450-J) 2019+

The Kawasaki KX450F motocross bike model was first introduced at the 2005 MX tournament in Japan, where critical problems in the frame design immediately surfaced, due to which the start of official sales was postponed for a year, and after the problem was resolved. by 2006, the Kawasaki KX450F officially went into production.

The new model positioned itself as a replacement for the 2-stroke version of Kawasaki KX500 (replacement of 2-stroke crosses with 4-stroke ones was observed in all representatives of the Japanese "four") and as a flagship in the line of cross bikes.

In the first year, the model received quite a lot of criticism from experts who, along with the excellent engine, noted the poor configuration of the suspensions and the geometry of the motorcycle itself. In addition, the 4-speed gearbox caused a lot of confusion, which, by the way, Kawasaki replaced with a 5-speed gearbox by the next (2007) year.

In 2009, the Kawasaki KX450F undergoes restyling, the main innovations of which were the use of an injector. The engine increased the compression ratio, and the fuel tank capacity was slightly reduced: 7.2 → 7.0 liters.

The next major change to the model came in 2012. The motorcycle received a new frame, new engine settings, a slightly reduced front wheel width (90 / 100-21 → 80 / 100-21), a reduced fuel tank (7.0 → 6.2 L) and a Launch Control Mode ).

For 2016, the Kawasaki KX450F is redesigned with an updated look, new engine and chassis settings, a new Showa SFF-Air front fork and a new front brake disc (new shape, increased size: 250 → 270 mm).

In 2019, Kawasaki introduced a completely new generation of the model, which now does not have the letter F in its name - the KX450. In addition to the exterior, the model received a new fork, a new rear shock absorber, a hydraulic clutch, an electric starter, new engine and injector settings (increased throttle diameter).

The "younger" brother of the model is Kawasaki KX250F.

Main competitors:

Photos



Specifications

Specifications Kawasaki KX450F:

ModelKawasaki KX450F
Motorcycle typecross
Release year2006+
Framealuminum half duplex
Engine type1-cylinder, 4-stroke
Working volume449 cm³
Bore / Stroke96.0 x 62.1 mm
Compression ratio12.0: 1 - KX450-D

12.5: 1 - KX250E-F, KX450-J

12.8: 1 - KX450-H

Coolingliquid
Number of valves per cylinderDOHC, 4 valves
Fuel supply systemCarburetor, 1x Keihin FCR40 - KX450-D

DFI (Digital Fuel Injection) Injector, 1x Keihin 43mm - KX450E-H

Injector, 1x 44 mm - KX450-J

Ignition typeAC-CDI - KX450-D

DC-CDI - KX450-E +

Maximum power52.6 hp (38.7 kW) @ 9500 rpm - KX450-J (on wheel)

Launch Control Mode - KX450-F +

Maximum torque44.5 Nm (4.5 kg * m) @ 6700 rpm - KX450-J (on wheel)
Gearbox4-speed - KX450D6F

5-speed - KX450D7F +

Drive typechain
Front tire size90 / 100-21 57M - KX450D-E

80 / 100-21 51M - KX450-F +

Rear tire size120 / 80-19 63M
Front brakes1 disc, 250mm, 2-piston caliper - KX450D-F

Single disc, 270 mm, 2-piston caliper - KX450-H +

Rear brakes1 disc, 240 mm, 1-piston caliper - KX450D-H

1 disc, 250 mm, 1-piston caliper - KX450-J

Front suspension48mm KYB Inverted Fork (Fully Adjustable), 315mm Travel - KX450D-F

Showa SFF-Air Inverted Fork (Fully Adjustable) - 310mm travel - KX450-H

49mm Showa Inverted Fork (Fully Adjustable), 305mm Travel - KX450-J

Rear suspensionPendulum Progressive Uni-Trak with Monoshock (Fully Adjustable), 315mm Stroke - KX450D-H

Pendulum Progressive Uni-Trak with monoshock (fully adjustable), stroke - 307 mm - KX450-J

Motorcycle length2185 mm - KX450D-E, KX450-J

2180 mm - KX450-F

2195 mm - KX450-H

Motorcycle width820 mm - KX450D-H

830 mm - KX450-J

Motorcycle height1280 mm - KX450D-E

1275 mm - KX450-F, KX450-J

1290 mm - KX450-H

Wheelbase1485 mm - KX450-D, KX450-J

1480 mm - KX450E-F

1495 mm - KX450-H

Saddle height965 mm - KX450-D, KX450E9F-EAF

960 mm - KX450EBF, KX450-H

955 mm - KX450-F, KX450-J

Minimum ground clearance345 mm - KX450-D, KX450-H

340 mm - KX450E9F-EAF, KX450-J

335 mm - KX450EBF

330 mm - KX450-F

Acceleration to 100 km / h
Maximum speed
Fuel tank capacity7.2 L - KX450-D

7.0 L - KX450-E

6.2 L - KX450-F, KX450-J

6.3 L - KX450-H

Motorcycle weight (dry)99.8 kg - KX450-D
Motorcycle weight (curb)112.1 kg - KX450E9F

113.6 kg - KX450EAF

113.4 kg - KX450EBF

113.0 kg - KX450FC

112.5 kg - KX450FD +

108.7 kg - KX450-H

110.0 kg - KX450-J

Kawasaki Off-Road Motorcycles

Kawasaki
85-150 см³KX85 · KX125 · D-Tracker 125 · D-Tracker 150
200-250 см³D-Tracker 250 · KDX250 · Super Sherpa · KLR250 · KLX250 · KX250 · KX250F
300-350 см³KLX300
400-500 см³KLX450 · KX450F · KX500
600-750 см³KLR650

Documentation