14 August. Friday 2026
Kawasaki KX450 - 2023 Specifications and Reviews
The 2023 Kawasaki KX450 is a competitive motocross machine designed for intermediate to advanced off-road racers. Powered by a liquid-cooled 449cc single-cylinder four-stroke engine with DOHC and fuel injection, it delivers responsive power and precise throttle control. Known for its lightweight aluminum perimeter frame and agile handling, the KX450 excels in both sandy and hard-packed track conditions.
General information | |
| Category | Cross / motocross |
| Year | 2023 |
| Model | Kawasaki KX450 |
| | |
Engine and Transmission Specifications | |
| Clutch | Wet multi-disc, manual |
| 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 |
| Engine type | 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 | 120/80-19 |
| 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 | 122 mm (4.8 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 | 340 mm (13.4 inches) |
| Overall width | 820 mm (32.3 inches) |
| Overall length | 2185 mm (86.0 inches) |
| Overall height | 1265 mm (49.8 inches) |
| Seat height | 955 mm (37.6 inches) If adjustable, lowest setting. |
| Weight incl. oil, gas, etc | 109.9 kg (242.3 pounds) |
| Dry weight | 105.8 kg (233.2 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Starter | Electric |
| Color options | Lime Green |
Performance Profile & Rider Fit
Best For
Track90%
City10%
Cornering85%
Daily Riding8%
Touring5%
Passenger0%
Rider Profile
| Best For | This is a full-blown motocross competition bike best suited to experienced off-road or motocross riders, not beginners or road riders. |
| Purpose | Built purely for motocross racing on closed circuits, jumps, and rough terrain rather than any form of street use. |
| Rider Fit | Its tall seat height, minimal weight, and aggressive ergonomics demand good rider fitness, strength, and off-road skill to control effectively. |
| Character | A razor-sharp, lightweight, high-revving dirt weapon that rewards aggressive, athletic riding with explosive agility over jumps and rough tracks. |
| Not Ideal For | It is not suitable for commuting, touring, passengers, or anyone seeking comfort, storage, or street-legal practicality. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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Rider Reviews
Total comments: 1
MotorcycleDB Review
The 2023 Kawasaki KX450 is a powerhouse of a motocross bike, offering top-of-the-line performance and agility. With a 449cc engine and agile chassis, this bike is designed to handle the most challenging of terrains with ease. The high-performance suspension system and lightweight frame make it easy to maneuver through tight corners and handle jumps with confidence. The KX450 also features advanced technology such as electric start and a hydraulic clutch, making it a top choice for serious motocross enthusiasts. One of the standout features of the 2023 Kawasaki KX450 is its powerful engine, which delivers impressive torque and acceleration. The bike's ergonomic design and adjustable handlebars make for a comfortable ride, while the advanced fuel injection system ensures smooth and consistent power delivery. Whether you're a seasoned pro or a beginner rider, the KX450's cutting-edge features and impressive performance make it a top contender in the motocross world. If you're looking for a bike that can handle the toughest of tracks and deliver top-tier performance, the 2023 Kawasaki KX450 is a top choice.Add a Comment
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