Comparison of Yamaha WR 450 F and Yamaha YZ 426 F [S]ave
| Attribute |  Yamaha WR 450 F × |  Yamaha YZ 426 F × |
|---|---|---|
| General | ||
| Production from (year) | 2004 | 2002 |
| Make | Yamaha | Yamaha |
| Model | Yamaha WR 450 F | Yamaha YZ 426 F |
| Category | Enduro / offroad | Cross / motocross |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
| Valves per cylinder | 5 | 5 |
| Displacement (cm³) | 449 | 426 |
| Cooling system | Liquid | Liquid |
| Bore (mm) | 95 | 95 |
| Stroke (mm) | 63.4 | 60.1 |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) | Double Overhead Cams/Twin Cam (DOHC) |
| Compression | 12.5:1 | 12.5:1 |
| Chassis | ||
| Front suspension | Telescopic fork | - |
| Rear suspension | Swingarm (linked type suspension) | - |
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Single disc |
| Diameter (mm) | 245 | 240 |
| Front tyre | 90/90-21 | 80/100-21 |
| Rear tyre | 130/90-18 | 110/90-19 |
| Front wheel travel (mm) | 300 | 300 |
| Rear wheel travel (mm) | 315 | 315 |
| Other | ||
| Color options |
| - |
| Dimensions | ||
| Wheelbase (mm) | 1,485 | 1,490 |
| Dry weight (kg) | 105 | 105 |
| Overall height (mm) | 1,303 | 1,303 |
| Overall length (mm) | 2,171 | 2,171 |
| Overall width (mm) | 827 | 827 |
| Seat height (mm) | 998 | 998 |
| Ground clearance (mm) | 371 | 375 |
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