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Enduro Bikes

2021Kawasaki KX450 XC

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The 2021 Kawasaki KX450 XC is a versatile enduro machine designed for intermediate to advanced off-road riders seeking a lightweight, fuel-efficient alternative to larger displacement bikes. Powered by a liquid-cooled 449cc single-cylinder four-stroke with DOHC and DFI fuel injection, it delivers impressive torque across a wide powerband. Known for its nimble handling and reliability, the KX450 XC excels in tight terrain and technical trails.

Capacity
449.0 ccm
Engine
Single, four-stroke
Gearbox
5-speed
Dry weight
107.0 kg
Seat height
950 mm
Power
56.0 HP (41.2 kW)
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How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 60Agility 92Comfort 35Off-road 97Touring 15Road manners 20
Off-road & trail97%
Cornering88%
City riding10%
Daily riding15%
Touring12%
Two-up5%
Track55%
Best for
Built specifically for cross-country and enduro racing, it thrives on rough, demanding terrain where lightweight power delivery and premium suspension matter most.
Built for
Explosive, high-revving, and razor-sharp in handling, this bike feels like a focused racing tool rather than a relaxed companion.
Not ideal for
It is not suited for commuting, highway travel, carrying passengers, or riders seeking a comfortable, low-maintenance daily ride.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

Worked out in your browser - nothing is sent to us
At 950mm, a rider of 68.9" with a 31" (estimated) inseam will not reach the ground comfortably on the 2021 Kawasaki KX450 XC, with a cramped knee angle of around 85 degrees and an upright riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at over 900 mm — Sky High →

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Full specifications

Engine
Capacity
449.0 ccm
Power
56.0 HP (41.2 kW)
Engine type
Single, four-stroke
Power/weight ratio
0.5234 HP/kg (dry)
Bore x stroke
96.0 x 62.0 mm
Compression
12.5:1
Cooling system
Liquid
Fuel system
Injection
Starting
Electric
Ignition
Digital CDI with 3 Coupler Options
Valves per cylinder
4
Torque
Not on record - add it
Transmission
Gearbox
5-speed
Transmission type
Manual
Clutch
Coned disk-spring hydraulic
Dimensions & weight
Wheelbase
1485 mm
Overall length
2185 mm
Overall width
820 mm
Overall height
1265 mm
Seat height
950 mm
Dry weight
107.0 kg
Fuel capacity
6.20 litres
Ground clearance
335 mm
Chassis & suspension
Frame
Aluminum perimeter
Front suspension
49mm inverted telescopic coil-spring fork with 16-way compression damping and 16-way rebound damping
Rear suspension
Uni-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
Front wheel travel
305 mm
Rear wheel travel
307 mm
Rake (fork angle)
27.6°
Trail
119 mm
Brakes & wheels
Front brakes
Single disc. Semi-floating petal discs
Front brakes diameter
270 mm
Rear brakes
Single disc. Single-piston caliper.
Front tyre
80/100-21
Rear tyre
120/80-18
Other
Color options
Lime Green
Comments
Launch Control. Easy engine tuning.

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

Rider Reviews

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MotorcycleDB

The 2021 Kawasaki KX450 XC is a powerful and versatile off-road motorcycle that is perfect for adrenaline junkies and off-road enthusiasts. With its 449cc engine and lightweight chassis, this bike offers impressive performance and excellent handling on a variety of terrains. The electric start, hydraulic clutch, and adjustable suspension make it easy to ride and customize according to your preferences. Whether you're hitting the trails or navigating through rough terrain, the KX450 XC delivers a thrilling and exhilarating riding experience.

Kawasaki has definitely delivered a top-notch off-road motorcycle with the 2021 KX450 XC. Its powerful engine, lightweight design, and advanced features make it a standout choice for anyone looking for a high-performance off-road bike. The electric start and adjustable suspension add to the overall convenience and comfort of riding this motorcycle. If you're in the market for a reliable and powerful off-road bike, the KX450 XC is definitely worth considering.

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Common questions

What is the engine size of the Kawasaki KX450 XC?

The 2021 Kawasaki KX450 XC has a Capacity of 449.0 ccm (27.40 cubic inches).

What engine power does the Kawasaki KX450 XC have?

The 2021 Kawasaki KX450 XC has a Power of 56.0 HP (41.2 kW).

How many gears does the Kawasaki KX450 XC have?

The 2021 Kawasaki KX450 XC has a Gearbox of 5-speed.

How much does the Kawasaki KX450 XC weigh?

The 2021 Kawasaki KX450 XC has a Dry weight of 107.0 kg (235.9 pounds).

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