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| Category | Cross / motocross | 
| Year | 2011 | 
| Model | Yamaha YZ250F | 
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 | Carburettor. Keihin  FCR MX37 | 
| Valves per cylinder | 5 | 
| Bore x stroke | 77.0 x 53.6 mm (3.0 x 2.1 inches) | 
| Compression | 13.5:1 | 
| Engine type | Single cylinder, four-stroke | 
| Capacity: | 250.00 ccm (15.26 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 | 100/90-19 | 
| Front tyre dimensions | 80/100-21 | 
| Rear suspension travel | 305 mm (12.0 inches) | 
| Rear suspension | Fully adjustable single shock | 
| Front suspension travel | 300 mm (11.8 inches) | 
| Front suspension | Speed-Sensitive System inverted fork | 
| Frame type | Yamaha Motor Home | 
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Physical measures and capacities | 
| Oil capacity | 1.20 litres (0.08 quarts) | 
| Fuel capacity | 6.43 litres (1.70 gallons) | 
| Wheelbase | 1,466 mm (57.7 inches) | 
| Ground clearance | 376 mm (14.8 inches) | 
| Overall width | 826 mm (32.5 inches) | 
| Overall length | 2,159 mm (85.0 inches) | 
| Overall height | 1,303 mm (51.3 inches) | 
| Seat height | 988 mm (38.9 inches) If adjustable, lowest setting. | 
| Weight incl. oil, gas, etc | 102.0 kg (224.8 pounds) | 
Other specs | 
| Light | Dual 30W Krypton multireflector Headlights and 3.9/0.5W LED Brake light | 
| Color options | Black metallic/red | 
| 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 | 
| Factory warranty | 30 Day (Limited Factory Warranty) | 
| Starter | Electric | 
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