2025 Kawasaki KX 450 Specifications
| Manufacturer | Kawasaki |
| Model Year | 2025 |
| Model | KX 450 |
| Model Code | KX450MSFNN |
| Stock Number | 2025114 |
| Color | Lime Green |
| 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 caliper |
| Tires | Front: 80/100-21 Rear: 120/80-19 |
| Length | 85.8 in. |
| Height | 50 in. |
| Width | 32.3 in. |
| Weight | Curb without fuel: 238.3 lb Curb: 248.2 lb* |
| *Note | Curb weight includes all fluids, 90%+ fuel capacity, and tool kit (if supplied). |
| Ground Clearance | 13.6 in. |
| Wheelbase | 58.3 in. |
| Seat Height | 37.8 in. |
| Transmission | 5-speed, return shift |
| Final Drive | Chain |
| Engine | 4-stroke single, DOHC |
| Cooling | Liquid |
| Displacement | 449 cc |
| Bore x Stroke | 3.7 x 2.4 in. (96 x 62.1 mm) |
| Compression Ratio | 12.5:1 |
| Clutch | Wet multi-disc manual with hydraulic actuation |
| Fuel System | DFI with 44 mm Keihin throttle body |
| Ignition | Digital CDI with handlebar-controlled Power Modes |
| Fuel Capacity | 1.64 gal. |
| Modes | Power Mode, Launch Control |
| Instrumentation | Smartphone Connectivity via RIDEOLOGY THE APP KX |
| Advanced Electronics | Kawasaki TRaction Control (KTRC) |
| Frame | Aluminum perimeter |
| Chassis Management | ERGO-FIT |
| Front Suspension | 49 mm inverted telescopic coil-spring fork with 21-way adjustable compression and 22-way adjustable rebound damping Wheel travel: 12.0 in. |
| Rear Suspension | Uni-Trak gas-charged shock with piggyback reservoir, dual-range compression damping (19-way low speed and 4.25-turn stepless high speed), 23-way rebound damping, and stepless adjustable preload Wheel travel: 12.1 in. |
| Rake | 26.6° |
| Trail | 4.5 in. |
| Grips | ODI lock-on |
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