| MODEL | KAWASAKI KDX 450 1980 - 1982 |
| Year | 1980 - 1982 |
| Engine Type | Two stroke, single cylinder |
| Displacement / Capacity | 433 cc / 26.4 cu-in |
| Bore X Stroke | 83 x 82 mm |
| Compression Ratio | — |
| Cooling System | Air cooled |
| Max Power | 45 hp / 33.5 kW @ 6500 rpm |
| Max Torque | 5.3 kgf-m / 38.3 lb-ft @ 6000 rpm |
| Ignition | CDI |
| Induction | 36mm Mikuni carburetor |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5 Speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | Adjustable air forks, 259 mm / 10.2 in travel |
| Rear Suspension | Uni-Trak, 230 mm / 9.1 in travel |
| Front Brakes | Drum |
| Rear Brakes | Drum |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 945 mm / 37.2 in |
| Wheelbase | 1520 mm / 59.8 in |
| Ground Clearance | 315 mm / 12.4 in |
| Dry Weight | 118 kg / 260 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 3.50 -21 |
| Rear Tyre | 5.00 -18 |
| FUEL SYSTEM | |
| Fuel Capacity | 12 Litres / 3.3 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The KDX 450 is the largest-capacity KDX of the early 1980s, a 433 cc air-cooled two-stroke single with Uni-Trak rear suspension and drum brakes. Its 45 hp claim and longer 1520 mm wheelbase set it apart from the 250 and 400, and the page carries no narrative beyond a request for corrections.
