Comparison of Yamaha WR 426 F 2002 and Yamaha YZ450FSE - Special Edition [S]ave
| Attribute |  Yamaha WR 426 F 2002 × |  Yamaha YZ450FSE - Special Edition × |
|---|---|---|
| General | ||
| Production from (year) | 2002 | 2007 |
| Make | Yamaha | Yamaha |
| Model | Yamaha WR 426 F | Yamaha YZ450FSE - Special Edition |
| Category | Cross / motocross | Cross / motocross |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
| Valves per cylinder | 5 | 5 |
| Displacement (cm³) | 426 | 449 |
| Cooling system | Liquid | Liquid |
| Transmission type,final drive | - | Chain |
| Bore (mm) | 95 | 95 |
| Stroke (mm) | 60.1 | 63.4 |
| Gearbox | - | 5-speed |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) | Double Overhead Cams/Twin Cam (DOHC) |
| Ignition | - | CDI |
| Lubrication system | - | Dry sump |
| Compression | 12.5:1 | 12.3:1 |
| Chassis | ||
| Front suspension | - | Telescopic fork |
| Rear suspension | - | Monocross |
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Single disc |
| Diameter (mm) | 240 | 245 |
| Front tyre | 90/90-21 | 80/100-21 |
| Rear tyre | 130/90-18 | 100/90-19 |
| Front wheel travel (mm) | 300 | 300 |
| Rear wheel travel (mm) | 315 | 310 |
| Other | ||
| Starter | - | Kick |
| Dimensions | ||
| Wheelbase (mm) | 1,490 | 1,494 |
| Dry weight (kg) | 112 | 99 |
| Overall height (mm) | 1,303 | 1,306 |
| Overall length (mm) | 2,270 | 2,191 |
| Overall width (mm) | 835 | 825 |
| Seat height (mm) | 998 | 989 |
| Ground clearance (mm) | 375 | 373 |
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