Yamaha's profilation of this bike
| In its first year of Grand Prix racing, Using technology developed from Yamahas Grand Prix winning factory machines, the 2004 YZ450F runs with new larger diameter 48mm front forks and uprated rear suspension while the high-revving short-stroke motor benefits from revised carburettor settings and remapped ignition timing. |
| General information |
|---|
| Model: | Yamaha YZ 450 F |
| Year: | 2004 |
| Category: | Cross / motocross |
| Engine and transmission |
|---|
| Displacement: | 449.00 ccm (27.40 cubic inches) |
| Engine type: | Single cylinder |
| Stroke: | 2 |
| Compression: | 12.5:1 |
| Bore x Stroke: | 95.0 x 63.4 mm (3.7 x 2.5 inches) |
| Valves per cylinder: | 5 |
| Fuel control: | DOHC |
| Cooling system: | Liquid |
| Physical measurements |
|---|
| Dry weight: | 97.0 kg (213.8 pounds) |
| Seat height: | 995 mm (39.2 inches) If adjustable, lowest setting. |
| Overall height: | 1,303 mm (51.3 inches) |
| Overall length: | 2,171 mm (85.5 inches) |
| Overall width: | 827 mm (32.6 inches) |
| Ground clearance: | 371 mm (14.6 inches) |
| 1,485 mm (58.5 inches) |
| Chassis and dimensions |
|---|
| Front Suspension: | Telescopic fork |
| Front Suspension travel: | 300 mm (11.8 inches) |
| Rear Suspension: | Swingarm (linked type monocross) |
| Rear Suspension travel: | 315 mm (12.4 inches) |
| Front tyre dimensions: | 80/100-21 |
| Rear tyre dimensions: | 110/90-19 |
| Front brakes: | Single disc |
| Front brakes diameter: | 250 mm (9.8 inches) |
| Rear brakes: | Single disc |
| Rear brakes diameter: | 245 mm (9.6 inches) |
| Speed and acceleration |
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| Other specifications |
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| Color options: | Blue |
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