All about the Kawasaki KX 450F, KX 250 F and 2006 Kawasaki KX 250 ™

Kawasaki  has  published  photos  and  specifications  for  their  2006  models   motocross  today,  including  the  long-awaited four-stroke KX450F. The big news for 2006 is that Kawasaki KX125 abandoned the range (at least the USA, according to a press representative Kawasaki), probably a consequence of poor sales compared to the KX250F four-stroke. Will two-stroke 125s disappear in 2006? We will have to wait and see what other manufacturers. Until then, here are the technical specifications on the range KX 2006. Keep in mind that the following materials prices Kawasaki press, and does not constitute MD editorial.

2006 Kawasaki KX 450F unveiled

The edge flagship KAWASAKI AWESOME combines four-stroke power with double-spar aluminum frame

Kawasaki, the brand that introduced the world motocross-like and frameworks aweinspiring powerbands, has unveiled a new flagship in its vanguard KX ™ motorcycle online. All aspects of the 2006 KX450F, its ultra-powerful four-stroke engine aluminium chassis trick and suspension, reflects its purpose as a championship-winning bike race. Kawasaki engineers have pointed out all the details on the new, liquid-cooled, 449cc four-stroke engine to ensure that its offer maximum power and traction. With double general cams, four valves and a Keihin FCR40 carburetor, it combines stunning acceleration with more good-rev capacity so that the rider can use very little of its incredible power over the racecourse. Hand-finished to maximize the intake ports of entry efficiency, while lightweight titanium valves and valve aluminum restraint alternative reduce the weight of reliable valve control at high speed. Moreover, double valve springs provide stable operation under intense racing conditions. For fast and easy way to begin, the KX450F features once compression release and automatic system hot start.

The KX450F is using newly designed, high-capacity Denso radiators, which offers better cooling under race conditions. With its radiator carefully packaged carrots and new design end, new radiators improve the dispersion of the constant heat engine power and reliability characteristics.

The KX450F is equipped with a conical exhaust pipe titanium which grows in diameter from 38 to 41mm, which contributes to its great power, and muffler new features, long-fibre packaging.

Kawasaki engineers have matched the high-technology engine to a new four-speed transmission. Combined with a manual multi-disc wet clutch, the four-speed allows the rider to take advantage of the engine intrinsically off power on the racetrack, acceleration towers high speed lines, the pilot can use KX450F precise gas to adjust the speed almost instantly. And to protect the underside of the engine and transmission, the KX450F comes with a lightweight aluminum skid.

KX450F The chassis was designed to help the rider bring the power of the engine ground. To do this, Kawasaki engineers have combined their experience designing steel perimeter KX frames and techniques used to construct the Ninja ZX ® ™ -10 R sport bike frame to create a perimeter allnew aluminum frame. Composed false, extruded and coins cast aluminum, strong double spar design gives the KX450F optimal balance of torque and longitudinal rigidity.

The framework was designed so that the centre of gravity of the chassis and key dimensions of working together to improve the rear wheel's ability to drive the KX450F forward instead of squatting under acceleration. In addition, four-stroke engine is in a vertical position in the new context of overall aid traction.

Kawasaki then added complementary front and rear suspension to the KX450F. A Kayaba AOS (Air-Oil-Separate) fork keeps oil and air in rooms for amortization of stable performance over long sleeves. On the back, UNI-TRAK ® rear suspension system has a swing arm alloy conical with stringers and ratios link to maximize traction under acceleration. Front and rear disc brakes provide petal to stop the KX450F. This not only helps to reduce unsprung weight, but the form of petal discs used to clean the brake pads more effective braking.

The slim profile of the KX450F frame, two-piece radiator shrouds that leave the upper frame spars exposed, and careful design of the body remaining KX450F make the sensation of lightness and reduce under the rider.

The KX450F comes with a handlebar Renthal aluminum, while the seat uses a slipresistant top surface for good grip seated and the right sides of enhancing mobility rider. The KX450F also has titanium footpegs and footpeg brackets for reducing overall weight. In addition to the KX450F ultra-high-performance design is aggressive bodywork and graphics.

Kawasaki offers a number of parts option for the KX450F, including a summit mounting fixture oversized handlebars, aluminium and steel rear sprockets, solid petal disc brake disc moist conditions of course, optional for springs front fork and rear shock, and 20-inch front wheel.

      FEATURES

      Engine
      -- 449cc liquid-cooled, four-stroke single
      -- Great power extends more and rev --
     

     Top End
      -- Top-acceleration assist cam engine rev faster
      -- Camshaft lobes and push-based soft nitriding surface treatment for the wear and high reliability rpm
      -- The hand-finished surfaces polished intake ports improve the effectiveness of admission to all rpm
      -- Light supply titanium 36mm and 31mm exhaust valves and valve aluminum restraint alternative reduce the weight of
          reliable valve control at high rpm
      -- Double valve sources help ensure the stable functioning tap
      -- From the screw type chain tensioner cam adjustment pressure spring functions automatically
      -- Low-friction coating on the piston skirt

      End Lower
      -- Crankshaft, the mass-rotor centralization, oil traffic, and the lighting have been carefully examined in order to help
          ensure ideal braking characteristics of the engine
      -- Crankshaft and rod are sintered for additional rigidity

      From
      -- Features highly reliable self-decompression system, the double weight decompression centrifuge system mounted on 
          the exhaust came easy start, and its simple construction contributes to ensuring reliability
      -- System hot start gives quick starts when the engine is hot, and the lever hot start is unitary with the clutch lever
      -- The piston operating the starter has a hot U-sealed package to prevent water from entering the fuel system

      The exhaust
      -- Coniques any exhaust pipe diameter titanium ranges from 38 to 41mm, which contributes to both low and high-
          performance rpm
      -- Tip titanium exhaust heat shield
      -- Silencer uses new, long-fibre packaging

      Cooling
      -- A completely new, high-capacity Denso radiators offer better efficiency cooling
      -- Slim new feature radiators more tightly packed carrots and a new design for a better end dispersion of heat

      Shifting
      -- Four-speed transmission features new change drum came minimize lever for change to play
    

      Frame
      -- All perimeter-aluminum frame is composed of composite structure forged, extruded and molded components
      -- The slim profile of the KX450F frame, two-piece radiator shrouds that leave the upper frame spars exposed, and careful
          design of the body remaining KX450F make the sensation of lightness and reduce under the rider
      -- Titanium footpegs and footpeg brackets
      -- Plaque aluminum skid

      Front Suspension
      -- Kayaba AOS (Air-Oil-Separate) fork keeps oil and air in rooms for amortization of stable performance over long-sleeved
      -- Low-friction fork seals contribute to the good deed
      -- Shirts plastic in the tuning fork sliders allow secondary

      Rear Suspension
      ® rear suspension system features link ratios according to the new frame and swingarm - New UNI-TRAK
      -- Oscillating alloy used to cast the tapered spars hydroformed and forged chain Arrache, the stringers are conical shaped  
          to match the balance of flex and stiffness necessary aluminum frame, and allow for additional authorization 'rear caliper
          brake when the rear suspension is fully compressed

      Brakes
      -- Front and rear disc brakes petal help reduce unsprung weight
      -- Petal shaped discs help clean the brake pads for more effective braking system effective

      Wheels
      -- 32-spoke rear wheel to reduce unsprung weight

      From the cockpit
      -- Guidon Renthal aluminum are standard
      -- Light handles short-length feature a special structure to reduce vibrations transmitted through the bars to the rider
      -- Headquarters uses a slip-resistant top surface for good grip seated and the right side for an excellent rider mobility

      Gain weight
      -- Parts of aluminium used instead of steel, including elbow cable clutch, clutch cable nut assembly, mounting fuel tank           nuts, seat mounting brackets, front brake clamp and hose ignition stay support

      Options
      -- Cable optional introduction allows the operation manual decompressor through a lever on the right handle grip
      -- Top of assembling a fixation for oversized handlebars
      -- Aluminum and steel rear gables optional tooth sizes
      -- Solid petal brake rotors for wet race conditions
      -- Optional springs for the front fork and rear shock
      -- 20-inch front wheel

      SPECIFICATIONS *
      Engine: liquid-cooled, four-stroke single with DOHC and four valves
      Displacement: 449cc
      Bore x stroke: 96.0 x 62.1mm
      Compression ratio: 12.0:1
      Carburation: Keihin FCR40
      Ignition: Digital AC-CDI
      From: Kick
      Transmission: Four-speed manual with multi-disc wet clutch
      Finale: Chain
      Context: aluminum perimeter
      Rake / Trail: 27 degrees / 4.6 in.
      Front suspension / wheel travel: 48mm inverted AOS-type fork of 22 tracks grace compression and Amortization 20-rebound      average / 12.4 inches
      Rear Suspension / wheel travel: UNI-TRAK ® link system with 22 channels of compression and rebound damping, fully             adjustable and clear / 12.4 inches
      Tyre before: 80/100-21 51M
      Rear tire: 100/90-19 57M
      Front brake: Single semi-floating 250mm petal disc with dual-piston caliper
      Brake rear: 240mm petal single disc with a single piston caliper
      Length: TBA
      Width: TBA
      Height: TBA
      Wheelbase: TBA
      On the ground: TBA
      Seat height: TBA
      Dry weight: TBA
      Fuel capacity: TBA
      Color: Kawasaki Lime Green / Black
      MSRP: TBA

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CHAMPIONSHIP-WINNING ™ KX 250 F Gets a Makeover DRAMA FOR 2006

125 reign supercross / ARENACROSS field gets even more power and brand new aluminum frame

Just two years after being introduced to the American motocross riders, the championship-winning KX ™ 250 F motorcycle was redrafted - even if it has five titles already under his proverbial belt.

Many changes have been made to the powerful KX250F. It produces much more power than the 2005 model it replaces, and as the new flagship KX450F, the KX250F all sports a perimeter-aluminum frame.

The 249cc, liquid-cooled, four-stroke engine now KX250F-strike hard power, particularly the mid-high rpm, and it extends this gentle, traction power to seize as much rev - range.

Other improvements include revised intake and exhaust, and a revised combustion chamber for a low-to mid-performance rpm, while new cam profiles and greater compression ratio 13.5 : 1 improve rpm-high performance. To compensate for the increased production, the piston now has a thick crown.

Other changes include rigid engine valve spring to help ensure the reliable valve control at high rpm, a surface hardened crankshaft for additional rigidity and more efficient oil pumps that increase oil flow nearly 20 percent, a new stick ignition coil which reduces the total mass and design new, high-capacity Denso radiators that provide better cooling performance because of their more crowded and new kernels end design. Kawasaki also revised the timing and lift system decompression, to starting the KX250F is even easier.

The clutch and five-speed transmission have also been modified to include new friction materials and rigid plate clutch springs to improve the feeling clutch and gearbox have beefier dogs according to the most powerful engine. Kawasaki engineers were also given the KX250F shift drum a new cam to improve the feeling move.

The most visible change to the KX250F is the perimeter of aluminum frame. As for the KX450F, Kawasaki engineers have combined their experience designing steel perimeter KX frames and techniques used to build the ® ™ Ninja ZX-10R motorcycle sport chassis to create an entirely new aluminum frame perimeter. Composed false, extruded and coins cast aluminum, but the strong light design gives KX250F the best possible balance of torsional and longitudinal rigidity necessary for better manoeuvrability.

The framework was designed so that the centre of gravity of the chassis and key dimensions of working together to improve the rear wheel's ability to drive the KX250F forward instead of squatting under acceleration. In addition, four-stroke engine is in a vertical position in the new context of overall aid traction.

The slim profile of the KX250F frame, two-piece radiator shrouds that leave the upper frame spars exposed, and careful design of the body remaining KX250F make the sensation of lightness and reduce under the rider.

The KX250F of high-performance suspension has been designed to complement the new framework. Up front, a double room Showa fork keeps the oil and air in rooms for the coherent implementation of depreciation for long sleeves. At the rear, a new UNI-TRAK ® system for the rear suspension, with a swing arm alloy conical with stringers and revised linkage ratios to maximize traction under acceleration.

Front and rear disc brakes provide petal to stop the KX250F. This not only helps to reduce unsprung weight, but the form of petal discs used to clean the brake pads more effective braking.

In addition to aggressive new bodywork and a new headquarters, the KX250F comes with a handlebar Renthal aluminum and aluminum plates slip standard. To reduce the total weight, the KX250F is using aluminum instead of steel for several components, including cable clutch elbow, cable clutch nut assembly, mounting fuel tank nuts, seat mounting brackets , Front brake clamp and hose ignition stay support. Kawasaki engineers also eliminated the upper mounting brackets previous models fork plastic protection.

Optional for the parties understand KX250F magneto rotors with different inertias, a 12-tooth countershaft gable top mounting fixture oversized handlebars, aluminium and steel rear sprockets, solid petal brake rotors for wet races, different sources for the front fork and rear shock, manual decompression lever and cable, and a 20-inch front wheel.

      FEATURES

      Engine
      -- 249cc, liquid-cooled, four-stroke engine pound hard-hitting power of the mid-to high-rpm
      -- Great power runs smoothly in the most-rev

      Top End
      -- Revised intake and exhaust, revised and improved combustion chamber low to mid-range performance
      -- Rev-limiter settings and lighting have been revised to extend the engine over-rev capacity
      -- New profile came to help increase high rpm without sacrificing performance with low performance
      -- Piston has a thick crown to offset rising power and compression ratio higher
      -- Once magneto-piece rotor offers better reliability
      -- New coil ignition stick saves weight and offers better performance

      End Lower
      -- Crankshaft is a hard surface for additional rigidity
      -- Countershaft a gable more - and less - grooves to increase reliability
      -- More efficient oil pumps increase oil flow by nearly 20 percent

      Cooling
      -- A completely new, high-capacity Denso radiators are slim
      -- Radiator features more tightly packed carrots and a new design at the end offer better efficiency cooling

      Shifting
      -- New equipment friction rigid plate and clutch springs improve the feeling of clutch
      -- New clutch lever design compensates for greater stiffness
      -- Five-speed transmission dogs are beefier game engine even more power
      -- Shift drum new features to improve the movement came to feel

      Frame
      -- All-aluminum frame perimeter composite structure characteristics, using false, extruded and molded components
      -- The thin frame, two-piece radiator shrouds that leave the upper frame spars exposed, and careful design of the                             remaining bodywork make the KX 250 F ™ sensation of lightness and reduce under the rider

      Front Suspension
      -- Showa fork-room double keeps oil and air in rooms for amortization of stable performance over long-sleeved

      Rear Suspension
      ® - New UNI-TRAK system features revised rear suspension link ratios based on the new celebrity and swingarm
      -- Oscillating alloy used to cast the tapered spars hydroformed and forged chain Arrache, the stringers are conical shaped             to match the balance of flex and stiffness necessary aluminum frame, and allow for additional authorization 'rear caliper             brake when the rear suspension is fully compressed
      -- Small guide channel rear reduced the total mass

      Brakes
      -- Front and rear brakes use new petal discs, which helps reduce the total mass
      -- Petal discs help clean the brake pads for more efficient braking performance

      Wheels
      -- New rear wheel helps reduce unsprung weight

      From the cockpit
      -- Guidon Renthal aluminum is strong and reduces the total mass
      -- Short-length handles are equipped with a special structure to reduce vibrations transmitted through the bars to the rider

      New Style
      -- New bodywork and new headquarters aggressive style

      Options
      -- Different disks magneto inertia
      -- 12 teeth countershaft sprocket
      -- Top-fixing for oversized handlebars bar
      -- Aluminum and steel rear gables optional tooth sizes
      -- Solid petal brake rotors for wet race conditions
      -- Optional springs for the front fork and rear shock
      -- Manuel decompression lever and cable
      -- 20-inch front wheel

      SPECIFICATIONS *
      Engine: Four-time single DOHC and four valves
      Displacement: 249cc
      Bore x stroke: 77.0 x 53.6mm
      Cooling: liquid
      Carburation: Keihin FCR37 circuit and hot start
      Compression ratio: 13.5:1
      Ignition: Digital AC-CDI
      Transmission: Five-speed multi-disc wet clutch manual
      Finale: Chain
      Context: aluminum perimeter
      Rake / Trail: 27.5 degrees / 4.7 "
      Front suspension / wheel travel: 47mm inverted double-chamber fork with 16 channels of compression and rebound                  damping / 12.4 inches
      Rear Suspension / wheel travel: UNI-TRAK ® link system with 13 channels at low speed and high-round 2 compression           damping, 17-rebound Amortization fully adjustable and clear / 12.2 inches
      Tyre before: 80/100-21 51M
      Rear tire: 100/90-19 57M
      Front brake: Single semi-floating 250mm disc with dual-piston caliper
      Rear brake: single 240mm disc with a caliper piston
      Length: TBA
      Width: TBA
      Height: TBA
      On the ground: TBA
      Seat height: TBA
      Dry weight: TBA
      Wheelbase: TBA
      Fuel capacity: TBA
      Color: Kawasaki Lime Green / Black
      MSRP: TBA

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2006 Kawasaki KX 250 ™

The two-time king returns

Several motocross magazines hailed the 2005 Kawasaki KX 250 ™ as one of the best allaround two-stroke motocross bikes because of its power, handling and ideal superb brakes. As a magazine said, "The 2005 KX250 is phenomenal!"

And it is sometimes difficult to improve on a winner, Kawasaki has succeeded in making the KX250 even better for 2006 with a fine-tuning of the engine, suspension and brakes. To make this race Supercross 250 winner even quieter, 249cc, liquid-cooled, twostroke has an engine piston new profile, while over a broader silent ensures KX250 meets modern noise emission standards. In addition, the silencer of any new long-fibre packaging is more durable and requires less maintenance. And to keep the KX250 at the best possible temperature, a new water pump wheel increases the flow of coolant.

Changes to the KX250 chassis include a strong, lightweight aluminum Renthal handlebars, and the rear shock now has two compression adjustment riders to have more options adjustment for both low-speed and high-speed ' compression damping. Up front, the fork Kayaba AOS has a new, a piece sleeve to improve the suspension compression to the fullest. For 2006, the KX250 has more stopping power. The new petal-style disc brakes are not only lighter, but they help you clear brake pads more effective braking.

The KX250 also has a new look for 2006, with aggressive new graphics and a new, two-tone seat.

Kawasaki offers optional for parties KX250, including parts of the carburetor adjustment, ignition rotors, a larger countershaft sprocket, aluminum and steel sprockets rear brake rotors for solid wet race conditions and a 20-inch front wheel.

      FEATURES

      Engine
      -- New profile piston reduces the mechanical noise
      -- Copper-plated steel washer yoke improves performance sealing
      -- Kips ® POWER valve O-ring seal offers better performance
      -- New reed valve cap form of new features to improve the low response rpm - revised form improves the efficiency of                        trapping facilitating the flow of air through the third sweep port
      -- New water pump impeller increases the flow of coolant to improve high-rpm performance and over-rev
      -- Primary gear is obtained using a key and lock-nut to help reduce mechanical noise
      -- New kickstart lever has revised the shape and angle mounting for increased durability
      -- New silencer is slightly wider and almost two inches more to ensure the KX 250 ™ meets more stringent noise emission          standards
      -- New fiber-long silent packaging is more durable and requires less maintenance

      Chassis
      -- Guidon Renthal aluminum is strong and lightweight
      -- Front and rear disc brakes petal help reduce unsprung weight
      -- Petal shaped discs help clean the brake pads for more efficient braking performance
      -- Shock back now with two compression adjustment riders to have more options for adjusting the two lowspeed and                high-speed compression damping
      -- Fine-tuning the Kayaba AOS (Air-Oil-separated) by a fork a new piece plastic in the range of tubes improves the                            suspension of the measures in full compression

      New Style
      -- Agressives Lime Green Kawasaki black and graphics are offset by a two-tone seat

      Options
      -- Adjusting the carburetor parts
      -- Different disks magneto inertia
      -- Larger countershaft Sprocket
      -- 20-inch front wheel
      -- Records brake solid for wet race conditions
      -- Aluminum and steel rear sprockets
      -- Optional fork and shock springs
      -- Steel spoke nipples
      -- Front and rear wheels

      SPECIFICATIONS *
      Engine: Two-time alone with kips ®
      Displacement: 249cc
      Bore x stroke: 66.4 x 72.0mm
      Cooling: liquid
      Carburation: Keihin PWK38S with Power Jet
      Admission: Reed valve piston
      Compression ratio: 10.5 (low speed) - 9.1 (high speed): 1
      Ignition: Digital CDI
      Transmission: Five-speed
      Finale: Chain
      Frame: Perimeter style and high tensile strength of steel with aluminum subframe
      Rake / Trail: 26 degrees / 4.1 in.
      Front suspension / wheel travel: 48mm inverted cartridge-type fork with 16 channels of compression and rebound damping        / 11.8 inches
      Rear Suspension / wheel travel: UNI-TRAK ® link system with 18 channels at low speed compression and 2-run                         high-speed compression damping, more than 16 courses grace rebound and fully adjustable spring / 12.2 inches
      Tyre before: 80/100-21 51M
      Rear tire: 110/90-19 62m
      Front brake: Single semi-floating 250mm petal disc with dual-piston caliper
      Brake rear: 240mm petal single disc with a single piston caliper
      Length: 86.0 inches
      Width: 32.1 in.
      Height: 49.8 in.
      On the ground: 13.4 inches
      Seat height: 38.0 inches
      Dry weight: 213.9 pounds.
      Wheelbase: 58.3 inches
      Fuel capacity: 2.2 gallons.
      Color: Kawasaki Lime Green / Black
      MSRP: TBA