14 August. Friday 2026
Kawasaki KX450 - 2025 Specifications and Reviews
The 2025 Kawasaki KX450 is a competitive motocross machine designed for experienced off-road riders seeking professional-level performance. Its 449cc liquid-cooled four-stroke engine delivers responsive power through advanced fuel injection and DOHC technology, while the 5-speed transmission enables precise control across varied terrain. Built for racing and serious trail riding, the KX450 is recognized for its aggressive handling and race-ready engineering.
General information | |
| Color Options | Lime Green |
| Category | Cross / motocross |
| Model | Kawasaki KX450 |
Engine and Transmission Specifications | |
| Starting | Electric |
| Clutch | Wet multi-disc, manual |
| Final Drive | Chain (final drive) |
| Gearbox | 5-speed |
| Cooling System | Liquid |
| Ignition | Digital CDI with 3 Coupler Options |
| Fuel Control | Double Overhead Cams/Twin Cam (DOHC) |
| Induction | Injection. DFI® with 44mm Keihin throttle body |
| Bore x Stroke | 96.0 x 62.1 mm (3.8 x 2.4 inches) |
| Compression Ratio | 12.5:1 |
| Engine Type | Single cylinder, four-stroke |
| Capacity: | 449.0 ccm (27.40 cubic inches) |
| | |
Physical measures and capacities | |
| Fuel Capacity | 6.20 litres (1.64 US gallons) |
| Wheelbase | 1480 mm (58.3 inches) |
| Ground Clearance | 345 mm (13.6 inches) |
| Overall Width | 820 mm (32.3 inches) |
| Overall Length | 2180 mm (85.8 inches) |
| Overall Height | 1270 mm (50.0 inches) |
| Seat Height | 960 mm (37.8 inches) If adjustable, lowest setting. |
| Wet Weight | 112.6 kg (248.2 pounds) |
| | |
Kawasaki KX450 dimensions and frame | |
| Wheels | Wire spoked |
| Rear Brakes | Single disc. Single-piston caliper. |
| Brake Disc Diameter | 240 mm (9.4 inches) |
| Front Brakes | Single disc. Semi-floating petal discs |
| Rear Tyre | 120/80-19 |
| Front Tyre | 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 | 115 mm (4.5 inches) |
| Frame | Aluminum perimeter |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Update specs | Report missing specs or required updates. |
| Comments | Smartphone Connectivity via RIDEOLOGY THE APP |
| Rake (fork angle) | 27.6° |
| Lubrication system | Forced lubrication, semi‑dry sump |
| Year of manufacture | 2025 |
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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