Tough terrain won’t stop us from winning. With championship-proven technology and tuning to take on every challenge, the KX450X has what it takes to win outdoors. Get the off-road edge by riding the bike built to stay ahead of the rest.
Tough terrain won’t stop us from winning. With championship-proven technology and tuning to take on every challenge, the KX450X has what it takes to win outdoors. Get the off-road edge by riding the bike built to stay ahead of the rest.
Engine type | Liquid-cooled, 4-stroke, single-cylinder |
Compression ratio | 12.5:1 |
Valve system | DOHC, 4 valves |
Bore x stroke | 96.0 x 62.1 mm |
Displacement | 449 cm³ |
Fuel system | Fuel injection: 44 mm x 1 |
Lubrication | Forced lubrication, semi‑dry sump |
Starting system | Electric |
Ignition system | Digital |
Transmission | 5-speed, return shift |
Clutch | Wet, multi disc |
Primary reduction ratio | 2.727 (60/22) |
Gear ratios 1st | 1.750 (28/16) |
Gear ratios 2nd | 1.412 (24/17) |
Gear ratios 3rd | 1.188 (19/16) |
Gear ratios 4th | 1.000 (19/19) |
Gear ratios 5th | 0.875 (21/24) |
Final drive | Sealed chain |
Final reduction ratio | 3.846 (50/13) |
Frame type | Perimeter, aluminium |
Trail | 119 mm |
Wheel travel front | 305 mm |
Wheel travel rear | 307 mm |
Tyre, front | AT 24 x 8-12 |
Tyre, rear | 140/80-18M/C 70R |
L x W x H | 2,180 x 815 x 1,260 mm |
Steering angle L R | 42° / 42° |
Wheel base | 1,480 mm |
Ground clearance | 335 mm |
Fuel capacity | 6.2 litres |
Seat height | 955 mm |
Curb mass | 113.8 kg |
Front brake type | Single semi-floating petal disc |
Front brake diameter | Ø 270 mm |
Front brake caliper type | Brembo dual-piston |
Rear brake type | Single petal disc |
Rear brake diameter | Ø 240 mm |
Rear brake caliper type | Single-piston |
Front suspension type | Inverted fork with adjustable compression and rebound damping |
Front suspension diameter | Ø 49 mm |
Rear suspension type | Uni-Trak, adjustable dual-range (high/low-speed) compression and adjustable rebound damping, and spring preload adjustability |
Thank you for visiting us at EICMA. We appreciate your interest in Kawasaki and our latest models. To explore the full range, return to the overview, where you can download the brochure.