2025 WR450F
Based on the benchmark-setting YZ450F motocrosser, the WR450F is made to be versatile. Lighter, more compact, and with a lower centre of gravity, the WR450F packs enhanced performance in the bush at all speeds. With a more tractable and longer pulling engine, revised ECU settings, improved chassis, lightweight brake system and more, the WR450F offers increased performance and handling in the toughest off-road conditions.
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| Chassis | |
|---|---|
| Brakes (Front) | 270 mm floating disc / twin-piston caliper |
| Brakes (Rear) | 245 mm disc / single-piston caliper |
| Suspension (Front) | Fully adj. inverted fork / 300 mm (11.8") wheel travel |
| Suspension (Rear) | Fully adj. Link Monocross / 306 mm (12.0") wheel travel |
| Tires (Front) | 80/100-21 |
| Tires (Rear) | 120/90-18 |
| Critical Data | |
|---|---|
| Colour(s) | Team Yamaha Blue |
| Fuel Capacity | 7.9 litres (1.7 Imp. gal.) |
| Ground Clearance | 330 mm (13") |
| Length | 2,170 mm (85.4") |
| Seat Height | 955 mm (37.6") |
| Wet Weight | 257 lbs |
| Wheelbase | 1,470 mm (57.9") |
| Engine | |
|---|---|
| Bore and Stroke | 97 x 60.8 mm |
| Compression Ratio | 13.0:1 |
| Displacement | 450 cc |
| Engine | liquid-cooled, DOHC, 4-valve (titanium), single |
| Final Drive | Chain |
| Fuel Delivery | Mikuni 44 mm throttle body F.I. |
| Ignition / Starting | TCI / Electric |
| Lubrication | Wet sump |
| Transmission | Constant mesh, 5-speed |
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