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Yamaha YZ450F - 2011 Specifications and Reviews
General information | |
| Category | Cross / motocross |
| Year | 2011 |
| Model | Yamaha YZ450F |
Engine and Transmission Specifications | |
| Transmission type,final drive | Chain |
| Gearbox | 5-speed |
| Cooling system | Liquid |
| Lubrication system | Dry sump |
| Ignition | CDI |
| Fuel control | DOHC |
| Fuel system | Injection. Yamaha Fuel Injection (YFI), Keihin 44mm |
| Valves per cylinder | 4 |
| Bore x stroke | 97.0 x 60.8 mm (3.8 x 2.4 inches) |
| Compression | 12.5:1 |
| Engine details | Titanium valves |
| Engine type | Single cylinder, four-stroke |
| Capacity: | 449.00 ccm (27.40 cubic inches) |
| | |
Brakes, suspension, Frame and wheels | |
| Rear brakes diameter | 245 mm (9.6 inches) |
| Rear brakes | Single disc |
| Front brakes diameter | 250 mm (9.8 inches) |
| Front brakes | Single disc |
| Rear tyre dimensions | 120/80-19 |
| Front tyre dimensions | 80/100-21 |
| Rear suspension travel | 315 mm (12.4 inches) |
| Rear suspension | KYB Fully adjustable single shock |
| Front suspension | KYB Speed-Sensitive System, inverted fork: fully adjustable, 12.2-in travel |
| | |
Physical measures and capacities | |
| Oil capacity | 1.20 litres (0.08 quarts) |
| Fuel capacity | 6.17 litres (1.63 gallons) |
| Wheelbase | 1,491 mm (58.7 inches) |
| Ground clearance | 381 mm (15.0 inches) |
| Overall width | 823 mm (32.4 inches) |
| Overall length | 2,192 mm (86.3 inches) |
| Overall height | 1,311 mm (51.6 inches) |
| Seat height | 998 mm (39.3 inches) If adjustable, lowest setting. |
| Weight incl. oil, gas, etc | 111.1 kg (245.0 pounds) |
Other specs | |
| Light | Dual 30W Krypton multireflector Headlights and 3.9/0.5W LED Brake light |
| Wheelbase | 1,270 mm (50.0 inches) |
| Rear tyre | 20/10-9 |
| Front tyre | 21/7-10 |
| Rear Suspension | Cast aluminum swingarm w/piggyback High/Low speed compression, rebound and threaded preload adjustment, 11.0-in travel |
| Front Suspension | Independent double wishbone, w/Kashima coated piggyback shocks, High/Low speed compression, rebound |
| Driveline | 2WD; Sealed O-Ring Chain, Eccentric Adjustment |
| Bore x Stroke | 95.0 x 63.4 mm (3.7 x 2.5 inches) |
| Compression | 11.6:1 |
| Model | Yamaha YFZ450X SE |
| Modifications compared to previous model | New clutch lever and pushrod for more consistent clutch feel during long motos. |
| Color options | White/Red, Team Yamaha Blue/White) |
| Factory warranty | 30 Day (Limited Factory Warranty) |
| Starter | Electric |
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