14 August. Friday 2026
Kawasaki KX450X - 2024 Specifications and Reviews
The 2024 Kawasaki KX450X is a competition-focused motocross machine designed for serious off-road racers and high-level amateur riders. Powered by a liquid-cooled 449cc single-cylinder four-stroke engine with advanced DFI fuel injection and DOHC technology, it delivers responsive performance across varied terrain. Best known for its aggressive handling characteristics and reliable five-speed transmission, the KX450X excels in competitive motocross environments.
General information | |
| Price as new | Do you know this bike?Click here to rate it. We miss 2 votes to show the rating. |
| Type | Cross / motocross |
| Year of manufacture | 2024 |
| Model | Kawasaki KX450X |
| | |
Engine and Transmission Specifications | |
| Clutch | Wet multi-disc manual clutch and hydraulic clutch actuation |
| Transmission type | Chain (final drive) |
| Gearbox | 5-speed |
| Cooling system | Liquid |
| Ignition | Digital CDI with 3 Coupler Options |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) |
| Fuel system | Injection. DFI® with 44mm Keihin throttle body |
| Bore x stroke | 96.0 x 62.0 mm (3.8 x 2.4 inches) |
| Compression | 12.5:1 |
| Type of engine | Single cylinder, four-stroke |
| Capacity: | 449.0 ccm (27.40 cubic inches) |
Brakes, suspension, Frame and wheels | |
| Wheels | Wire spoked |
| Rear brakes | Single disc. Single-piston caliper. |
| Diameter | 270 mm (10.6 inches) |
| Front brakes | Single disc. Semi-floating petal discs |
| Rear tire | 120/80-18 |
| Front tire | 80/100-21 |
| Rear wheel travel | 307 mm (12.1 inches) |
| 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 (12.0 inches) |
| Front suspension | 49mm inverted telescopic coil-spring fork with 16-way compression damping and 16-way rebound damping |
| Trail | 119 mm (4.7 inches) |
| Rake (fork angle) | 27.6° |
| Frame type | Aluminum perimeter |
| | |
Physical measures and capacities | |
| Fuel capacity | 6.20 litres (1.64 US gallons) |
| Wheelbase | 1485 mm (58.5 inches) |
| Ground clearance | 335 mm (13.2 inches) |
| Overall width | 820 mm (32.3 inches) |
| Overall length | 2185 mm (86.0 inches) |
| Overall height | 1265 mm (49.8 inches) |
| Seat height | 950 mm (37.4 inches) If adjustable, lowest setting. |
| Weight incl. oil, gas, etc | 111.6 kg (246.0 pounds) |
| Dry weight | 107.0 kg (235.8 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Update specs | |
| Comments | Launch Control. |
| Starter | Electric |
| Color options | Lime Green |
Performance Profile & Rider Fit
Best For
Track55%
City10%
Cornering70%
Daily Riding15%
Touring12%
Passenger5%
Rider Profile
| Best For | This is a competition-focused off-road machine best suited to intermediate and experienced dirt riders comfortable with a tall seat, aggressive suspension, and no electric start conveniences typical of the X cross-country variant. |
| Purpose | Built specifically for cross-country and off-road racing, with a wide-ratio gearbox, larger fuel capacity, and chassis geometry tuned for extended off-road stability rather than motocross jumps or street use. |
| Rider Fit | The extremely low wet weight and tall 950 mm seat height demand a fit, physically capable rider with good leg length and the strength to manhandle the bike over rough terrain and technical obstacles. |
| Character | It has the raw, high-strung, minimalist character of a purpose-built race bike: light, responsive, and demanding rather than forgiving. |
| Not Ideal For | This is not a suitable choice for commuting, highway touring, carrying a passenger, or riders seeking plush comfort and low-maintenance road-going practicality. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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