Category | Specification |
---|---|
Engine Type | 449 cc liquid-cooled, 4‑stroke single‑cylinder DOHC |
Displacement | 449 cc |
Bore × Stroke | 96.0 × 62.1 mm |
Compression Ratio | 12.5 : 1 |
Fuel System | DFI® fuel injection with 44 mm Keihin throttle body |
Starting System | Electric self-start (Li‑ion) |
Ignition | Digital CDI with handlebar power mode switch |
Transmission | 5‑speed return shift; wet multi‑disc hydraulic clutch |
Final Drive | Chain |
Frame Type | Aluminum perimeter |
Front Suspension | 49 mm Showa inverted fork; 305 mm travel; adj. compression/rebound |
Rear Suspension | Uni‑Trak gas shock w/ piggyback; 307 mm travel; dual‑range compression |
Front Brake | 270 mm petal disc, Brembo dual‑piston caliper |
Rear Brake | 240 mm petal disc, single‑piston caliper |
Front Tyre | 80/100‑21 |
Rear Tyre | 120/80‑19 |
Wheelbase | 1,480 mm (58.3 in) |
Ground Clearance | 345 mm |
Seat Height | 960 mm (37.8 in) |
Curb Weight | 112.9 kg (with fuel) |
Fuel Capacity | 6.2 L (1.64 gal) |
Electronics & Features | Power Modes, KTRC, Launch Control, RIDEOLOGY™ app, ERGO‑FIT |
The 2025 Kawasaki KX450 is a championship-proven motocross bike packed with high-end technology. Its 449 cc liquid-cooled DOHC engine with EFI and electric start delivers razor-sharp throttle response, managed via handlebar-mounted power modes, traction control, and launch control. Chassis-wise, it rides on a lightweight aluminum frame with a 49 mm Showa fork and Uni‑Trak rear shock, offering 305/307 mm travel. Braking is handled by Brembo and Braking/Sunstar components, while connectivity comes from the RIDEOLOGY™ app plus ERGO‑FIT adjustability. Weighing just ~113 kg and with nearly a meter-high seat, it balances explosive performance with adjustability for riders of varying builds.