

Specs
- New or used
- New
- Availability
- In stock
- Colour
- Lime Green
- Displacement
- 449 ccManufacturer spec
- Cylinders
- 1Manufacturer specDealer: Single
- Engine cycle
- Four-strokeManufacturer specDealer: 4-stroke, DOHC
- Cooling
- Liquid-cooledManufacturer specDealer: Liquid
- Transmission
- ManualManufacturer specDealer: 5-speed, return shift
- Final drive
- ChainManufacturer spec
- Seat height
- 37.8 inManufacturer spec
- Wheelbase
- 58.3 inManufacturer spec
- Ground clearance
- 13.6 inManufacturer spec
- Wet weight
- 238.3 lbManufacturer specDealer: Curb - 238.3 lb.* without fuel / 248.2 lb.* *Curb weight includes all necessary materials and fluids to operate correctly, full tank of fuel (more than 90 percent capacity) and tool kit (if supplied)
- Fuel capacity
- 1.64 galManufacturer spec
- Model code
- KX450MTFNN
- VIN
- JKAKXGMC5TA015023
- Stock #
- 5023
All details from the dealer (23)
- Badge
- On Sale
- Model Type
- KX - Full-Size MX
Additional Vehicle Features
- Additional Vehicle Features
- Quick-release side cover offers tool-less air filter access.Manufacturer spec
- Additional Vehicle Features
- Streamlined ergonomics for easy rider movement.Manufacturer spec
Brakes/Wheels/Tires
- Brakes
- Front - Single semi-floating 270 mm Braking / Sunstar petal disc with Brembo master cylinder and dual-piston caliper Rear - Single 240 mm Braking / Sunstar petal disc with single-piston caliperManufacturer spec
- Tires
- Front - 80 / 100-21 Rear - 120 / 80-19Manufacturer spec
Dimensions
- Length
- Overall - 85.8 in.Manufacturer spec
- Height
- Overall - 50 in.Manufacturer spec
- Width
- Overall - 32.3 in.Manufacturer spec
Electrical
- Instrumentation
- Engine Management Technology - rideology the app KXManufacturer spec
- Advanced Electronics
- Electronic rider aids - Power modes, Kawasaki TRaction Control (KTRC), Launch control mode Special features - Smartphone connectivity via RIDEOLOGY THE APP KX™Manufacturer spec
Engine
- Bore x Stroke
- 3.7 x 2.4 in. (96 x 62.1 mm)Manufacturer spec
- Compression Ratio
- 12.5:1Manufacturer spec
- Clutch
- Wet multi-disc manual and hydraulic actuationManufacturer spec
- Fuel System
- DFI® with 44 mm Keihin throttle bodyManufacturer spec
- Exhaust
- Straight port and centerManufacturer spec
- Ignition
- Digital CDI with handlebar-controlled power modesManufacturer spec
Operational
- Frame
- Aluminum perimeterManufacturer spec
- Front Suspension
- 49 mm Showa inverted telescopic coil-spring fork with 21-way adjustable compression and 22-way adjustable rebound damping Wheel travel - 12.1 in.Manufacturer spec
- Rake
- 26.6°Manufacturer spec
- Trail
- 4.5 in.Manufacturer spec
- Grips
- ODI lock-onManufacturer spec
Other
- Includes
- ERGO-FIT®Manufacturer spec
From the dealer's page
The KX™ legacy represents a long line of champions. The drive to produce more has not slowed down. Our flagship KX™450 motorcycle offers next-level engineering and power to dominate the track. Over the decades, we've learned what it takes to win and stay on top. The KX450 embodies this legacy to the fullest.
Price history
Tracked since Oct 2, 2026 · last checked 14h ago
Price details as printed by the dealer
- On Sale$8,599.99
Throttle does not add these up.
Not enough observations yet — the chart appears after the second crawl of this listing.
Timeline
First seen
Oct 2, 2026
Market context
Comp set: 2024–2028 Kawasaki KX450 · 80 listings
- Median asking
- $8,549
- across 66 comparable listings
- This one
- $8,600
- +0.6% vs median
- Days on market
- New to Throttle
- segment median 0d to sell
- Sold comps
- 1
- confirmed sold by our heartbeat
Deal reasons — where this asking price sits against similar listings, with the sample behind it
How Throttle+ will work →