Thursday, January 6, 2011

New Kawasaki KX 250F 2011

2011 Kawasaki KX250F
General review, specifications and features for the New Kawasaki KX250F 2011.

2011 Kawasaki KX250F Specifications

Engine Type: Four-stroke single with DOHC and four valves

Color Choices: Lime Green

Displacement: 249cc

Bore x stroke: 77.0 x 53.6mm

Cooling System: Liquid

Fuel injection: 43mm Keihin throttle body

Compression ratio: 13.5 : 1

Ignition: Digital DC-CDI

Transmission: Five-speed with wet multi-disc manual clutch

Final drive: Chain

Frame Type: Aluminum perimeter

Rake/Trail: 28.2 degrees/4.7 in.

Front suspension/wheel travel: 47mm inverted Showa SFF telescopic fork with spring preload adjustability and 22 position compression and 20 position rebound damping adjustability/12.4 in.

Rear suspension/wheel travel: Uni-Trak® linkage system and Showa shock with 19 position low-speed and stepless high-speed compression damping, 22 position rebound damping and fully adjustable spring preload/12.2 in.

Front Tire Size: 80/100-21

Rear Tire Size: 100/90-19

Front brakes: Single semi-floating 250mm petal disc with dual piston caliper

Rear Brakes: Single 240mm petal disc with single-piston caliper

Overall length: 85.4 in.

Overall width: 32.3 in.

Overall height: 50.0 in.

Wheelbase: 58.1 in.

Ground Clearance: 13.0 in.

Seat height: 37.2 in.

Curb weight: 232.7 lbs.

Fuel capacity: 1.9 gal.

2011 Kawasaki KX250F Features

  • Engine Features - The New Kawasaki KX250F 2011 249cc, liquid-cooled, four-stroke, four-valve, single-cylinder DOHC engine delivers hard-hitting power across the rpm range. Modified intake valve timing and cam profile for increased valve lift improves high-rpm power production. Intake valve spring tension increased to control more radical cam timing. Digital Fuel Injection (DFI) system allows consistent fuel delivery, quick starts and easy adjustability. Engine tuned to achieve the widest possible torque band to maximize traction through a greater percentage of the rev range. Race-experienced riders able to harness high-rpm performance that extends way into the over-rev. Sprocket-style chain drive roller helps reduce the effect of driveline lash and engine braking for smoother and faster corner entries. Crank web design features a balance factor on par with the factory racers for reduced engine vibration, smoother power delivery and increased performance in the mid-high rpm range. New Digital Fuel Injection (DFI) system. Increased engine performance via higher compression and exhaust/intake changes High-performance piston featuring Bridged Box-bottom design. Light and strong piston shares same design as the factory racers, with a revised crown for higher compression. Also features fully flush internal bracing and short piston pin reduces reciprocating weight.

  • Chassis Features - The New Kawasaki KX250F 2011 utilizes a low-rigidity steering stem for lighter handling. The KX250F’s slim and lightweight aluminum perimeter frame is composed of forged, extruded and cast parts. Center of gravity and key dimensions such as swingarm pivot, output sprocket and rear axle locations designed to increase forward drive with minimal rear-end squat. Upper engine mounts on head cover sides increase overall rigidity. Revised race-oriented suspension damping settings optimize front/rear balance. New Separate Function Fork (SFF) separates springing and damping functions for less weight, better performance, less friction and easier adjustability. Fork now allows external spring preload adjustability. Super-hard titanium coating on the outer surface of the inner fork tubes reduces friction and improves suspension action. The increased surface hardness also helps prevent scratches and tube damage. Friction-reducing Kashima Coat treatment on the inside of the outer fork tubes contributes to smoother suspension action. Wrap-around fork tube guards provide greater protection for the inner tubes. Revised shock damping settings offer increased absorption performance and greater stability on corner entry thanks to reduced rear-end kicking. Features Kashima Coat on the inside of the shock reservoir for reduced friction and smoother suspension action. Rear shock features dual compression adjustability, allowing high-speed and low-speed damping to be tuned separately.

Related models: 2011 KX 450F, 2011 KX 100, 2011 KX 85, 2011 KX 65

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