Comparison of Kawasaki KX450X and Yamaha WR 450 F 2TRAC [S]ave
| Attribute |  Yamaha WR 450 F 2TRAC × |  Kawasaki KX450X × |
|---|---|---|
| General | ||
| Production from (year) | 2004 | 2021 |
| Make | Yamaha | Kawasaki |
| Model | Yamaha WR 450 F 2TRAC | Kawasaki KX450X |
| Category | Enduro / offroad | Cross / motocross |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
| Valves per cylinder | 5 | - |
| Fuel system | Carburettor | Injection. DFI® with 44mm Keihin throttle body |
| Displacement (cm³) | 449 | 449 |
| Cooling system | Liquid | Liquid |
| Transmission type,final drive | Chain | Chain |
| Bore (mm) | 95 | 96 |
| Stroke (mm) | 63.4 | 62 |
| 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 |
| Clutch | - | Wet multi-disc, manual |
| Compression | 12.5:1 | 12.5:1 |
| Chassis | ||
| Front suspension | öhlins Upside-down telescopic fork | 49mm inverted telescopic coil-spring fork with 16-way compression damping and 16-way rebound damping |
| Rear suspension | öhlins shock absorber, Link-type suspension | Uni-Trak® gas charged shock with piggyback reservoir with dual-range (4 turns stepless high speed/19-way low-speed) compression damping |
| Front brakes | Single disc | Single disc. Semi-floating petal discs |
| Rear brakes | Single disc | Single disc. Single-piston caliper. |
| Diameter (mm) | 245 | 250 |
| Frame type | - | Aluminum perimeter |
| Front tyre | 90/90-21 | 80/100-21 |
| Rear tyre | 130/90-18 | 120/80-18 |
| Front wheel travel (mm) | 300 | 305 |
| Rear wheel travel (mm) | 315 | 307 |
| Trail (mm) | - | 119 |
| Rake (fork angle) (degree) | - | 27.6 |
| Other | ||
| Starter | - | Electric |
| Color options |
|
|
| Dimensions | ||
| Wheelbase (mm) | 1,485 | 1,485 |
| Dry weight (kg) | 119 | 107 |
| Overall height (mm) | 1,303 | 1,265 |
| Overall length (mm) | 2,171 | 2,185 |
| Overall width (mm) | 827 | 820 |
| Seat height (mm) | 998 | 950 |
| Ground clearance (mm) | 371 | 335 |
| Performance | ||
| Fuel capacity (l) | 10 | 6.2 |
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