| Attribute | Kawasaki KX450 2021 × | Kawasaki KX 450F Leo Vince × |
|---|---|---|
| General | ||
| Production from (year) | 2021 | 2012 |
| Make | Kawasaki | Kawasaki |
| Model | Kawasaki KX450 | Kawasaki KX 450F Leo Vince |
| Category | Cross / motocross | Cross / motocross |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
| Valves per cylinder | - | 4 |
| Fuel system | Injection. DFI® with 44mm Keihin throttle body | Carburettor. 43mm Keihin throttle body |
| Displacement (cm³) | 449 | 449 |
| Cooling system | Liquid | Liquid |
| Transmission type,final drive | Chain | Chain |
| Bore (mm) | 96 | 96 |
| Stroke (mm) | 62 | 62.1 |
| Gearbox | 5-speed | 5-speed |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) | Double Overhead Cams/Twin Cam (DOHC) |
| Ignition | Digital CDI with 3 Coupler Options | Digital DC-CDI |
| Clutch | Wet multi-disc, manual | - |
| Compression | 12.5:1 | 12.5:1 |
| Chassis | ||
| Front suspension | 49mm inverted telescopic coil-spring fork with 16-way compression damping and 16-way rebound damping | 48 mm upside-down AOS-type telescopic fork Compression damping: 22-way Rebound damping: 20-way |
| Rear suspension | Uni-Trak® gas charged shock with piggyback reservoir with dual-range (4 turns stepless high speed/19-way low-speed) compression damping | Uni-Trak Compression damping: 22-way (low-speed), 2-turns or more (high-speed) Rebound damping: 22-way Spring preload: Fully adjustable |
| Front brakes | Single disc. Semi-floating petal discs | Single disc. Dual-piston |
| Rear brakes | Single disc. Single-piston caliper. | Single disc |
| Diameter (mm) | 250 | 240 |
| Frame type | Aluminum perimeter | Perimeter, aluminium |
| Front tyre | 80/100-21 | 90/100-21 |
| Rear tyre | 120/80-19 | 120/80-19 |
| Front wheel travel (mm) | 305 | 314 |
| Rear wheel travel (mm) | 307 | 315 |
| Trail (mm) | 122 | 113 |
| Rake (fork angle) (degree) | 27.6 | 26.7 |
| Other | ||
| Starter | Electric | Kick |
| Color options |
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| Dimensions | ||
| Wheelbase (mm) | 1,485 | 1,481 |
| Kerb weight (kg) | 110 | 113 |
| Dry weight (kg) | 105 | - |
| Overall height (mm) | 1,265 | 1,280 |
| Overall length (mm) | 2,185 | 2,184 |
| Overall width (mm) | 820 | 820 |
| Seat height (mm) | 955 | 960 |
| Ground clearance (mm) | 340 | 335 |
| Performance | ||
| Fuel capacity (l) | 6.2 | 6.2 |