ONE more variants of the affected Yamaha Supermoto style, WR250X. Variants were present in 2011, not only using the clothes of motor sport engine. But, the engine capacity, enabling fast this bike collided at Supermoto event.
 250cc engine, this allows motir take part in the race. Handling is super agile, with a 17 inch wheel size, and package the fuel injected engine, the X model offers driving performance with a wild level.
 Many years of experience in building advanced motorcycle street style and wild motorcycle, Yamaha WR250X launched with full confidence. Power flows freely through the high-tech DOHC injection. Meanwhile, the framework of a hybrid aluminum and steel frame into the bones of this motor.
 Yamaha Yamaha WR250X is the latest gem. From powerful 250cc engine, fuel injection, EXUP equipped, 4-valve powerplant, and Supermoto chassis, this bike was built to offer leading performance mounts, without compromise and an unparalleled driving pleasure.
 Specifications on the machine WR250X has Liquid-cooled, 250cc, DOHC, 4-valve, 4-stroke powerplant with super light titanium intake valves and electronic fuel injection.
 Free from the complexity of the decompression system, which automatically ensures a quick first step and reduce the size of a large and heavy battery. Magnesium cylinder head cover that light can help reduce the weight of the motor.
 Downdraft-type straight design intake port, which provides the most efficient flow for maximum engine performance. Intake side and lightweight titanium valves, reducing the load spring to lower the weight more than 40% (compared to steel valves). Titanium valves reduce friction wear, Intake Valve 30mm diameter, 24.5mm in diameter while the exhaust valve. STEEP valve angle 11.5 degrees with the side of the intake side, and 12.5 degrees on the exhaust, which can produce slick combination of the engine.
 CR9EK NGK Spark plugs are located in the center of the combustion chamber. Well controlled combustion and provide a response at large throttle openings. Ceramic composite cylinder provides excellent heat dissipation for the power delivery more consistent and able to reduce oil consumption.
 Spesk Complete:Engine:Type: 250cc liquid-cooled 4-stroke DOHC, 4 valvesBore x Stroke 77.0 x 53.6mmCompression Ratio 11.8:1Delivery Fuel injectionDirect ignition coilTransmission: Constant-mesh 6-speed, multiplate wet clutchFinal Drive: Chain
 ChassisSuspension Front: Inverted fork, fully adjustable, travel-in 06.10Rear Suspension: Single shock, fully adjustable, 10.4-in travelBrakes Front: Hydraulic single-disc brake, 298mmBrakes Rear: Hydraulic single-disc brake, 230mmTires Front: 110/70-17Tires Rear: 140/70-17
 DimensionsLength 83.1 inchWidth 31.9 inchesHeight 46.9 inchesSeat Height 35.2 inches56.1-inch wheelbase10.2-inch Ground Clearance


source : http://autos.okezone.com/read/2011/05/23/53/460000/yamaha-wr250x-bergaya-supermoto

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