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Home / Motorcycles /Full-Size MX / 2024 KX250 50TH ANNIVERSARY EDITION



Kawasaki 2024 KX250 50TH ANNIVERSARY EDITION for Sale at Bowen Hills Kawasaki in Bowen Hills, QLD | Specifications and Review Information

With more Supercross and Motocross championships than any other manufacturer, the KX name is synonymous with winning. The KX250 motorcycle is the championship-proven machine built so you can ‘Be Next'. Be the next champion. Be the next hero. Be the next legend. Be the next trailblazer for an entire generation of greatness. On the KX250, your time is now.



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A super-hard titanium coating on the outer surface of the inner fork tubes helps prevent wear abrasion. The fork's surface hardness of the dark navy blue coating also helps to prevent scratches and damage to the tubes. Because the surface remains smooth for a longer period, sliding friction (and stiction) is reduced and action is improved, contributing to a smoother ride. (The KX250 is the only motocrosser in its class to feature this race-ready coating standard.)
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Removing the damper assembly from the right fork tube frees up space for a pre-load adjuster. Having a preload adjuster simplifies the task of setting the fork pre-load or front height. The racer friendly SFF Type 2 also facilitates other maintenance chores like adjusting damping and changing springs.
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The rear shock features dual compression adjustability, allowing high-speed and low-speed damping to be tuned separately. A self-lubricating anodised coating on the tank cylinder helps prevent wear abrasion, and reduces friction for smoother suspension action.
Revised valve settings contribute to improved ride feel and increased rear-end feedback.
Rear shock spring 52 N/mm and the fine tuned damping settings offering greater composure when braking and accelerating.
Uni-Trak rear suspension system mounts the suspension arm below the swingarm, allowing a longer rear suspension stroke. The longer stroke in turn allows more precise rear suspension tuning. Extensive rider testing was conducted to determine the ideal linkage ratios and rear shock absorber damping settings to achieve maximum rear wheel traction.
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For 2019, the ultra slim frame is one of the many components contributing to the KX250's trim form. The light weighing 2019 KX250 model is quick both in the straights and through the corners. Suspension settings for the high-spec SFF Type 2 front fork and Uni-Trak rear shock settings were determined to deliver great stability over braking bumps and through corners. A slim, flat rider interface further enhances the adjustable racer-friendly ergonomics, helping racers to rider even faster.
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Large oversized 270mm front disc contributes to race winning braking power and control.
The radical design front and rear petal discs offer strong braking performance, excellent competitive edge with high quality factory looks.
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High-performance piston, featuring the same design used on our factory racers, contributes to strong performance at all rpm. A short skirt, reinforced external ribs and the use of a bridged-box bottom, featuring internal bracing, contributes to a light, strong piston design. Already the lightest piston in its class, the pistons design and strength optimisation help lower reciprocating mass and contribute to the engine's strong performance. Piston pin is offset 0.25 mm, complementing the offset cylinder and help reduce mechanical losses. Strength optimisation results in a light piston pin design. Coating and striation on the piston outer surface ensure good wear resistance and oil retention for minimal sliding friction. The molybdenum coating also helps reduce mechanical loss.
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Adjusting engine settings to suit conditions has never been easier than with the KX's FI couplers. Plug-and-play style system is quick, easy and stress-free. Instead of a single engine map, the ECU features three (four, counting the Launch Control Mode map). Initial settings for the three maps are: Standard (green), Hard (conditions)(black) and Soft (conditions)(white). Using provided FI couplers, riders are able to easily switch between the three maps to suit riding conditions. Plugging in each of the 4-pin couplers activates the corresponding engine map. (Plug is conveniently located on the right side of the head pipe for easy access without having to remove any parts.)
Each of the three maps can be reprogrammed using the optional KX FI Calibration Kit.
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The updated KX FI Calibration Kit features the handheld KX FI Calibration Controller, which enables expert riders to adjust engine characteristics (by rewriting actual data maps) to suit their preference. This simple tool can be used without a PC, simply by plugging into the engine's ECU.
The KX FI Calibration Controller is handheld tool with a built in colour LCD screen. It comes with transfer and diagnostic cables, SD memory card, user manual and a carrying case.
Ask you Authorised Kawasaki Dealer for more information on this option.
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The KX250 features a launch control system similar to that on our factory racers. With the simple press of a button, riders can activate a separate engine map designed to ensure efficient race starts in slippery conditions. The Launch Control Mode map retards ignition timing, allowing tyres to gain grip in low traction situations.
Launch Control Mode has the greatest effect within the first few seconds of releasing the clutch off the start. This is the most crucial time for the rider to get ahead of their rivals and line up the first corner.
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To activate the Launch Control Mode riders depress the launch control button (for 2 seconds) located at the left handle. when activated the light next to the button will flash quickly to let the rider know it is on. Launch Control Mode works in 1st and 2nd gear. Once the rider shifts into 3rd gear, the system is automatically disengaged, switching back to the normal engine mapping.
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43 mm throttle body is both compact and light. The main injector is now mounted at 30° in the throttle body and the FI settings have been optimised for the updated engine settings.
Designed specifically for motocrossers, the fuel injection system incorporates a small lightweight ECU and operates without a battery to further eliminate unnecessary weight. And of course, fuel injection eliminates the need to adjust engine settings to suit track and climate conditions.
The KX250 fuel pump, located in the fuel tank, is a lightweight aluminium construction. The fuel pump's high 343kPa pressure matches the high performance injector.
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A choice of four positions allows riders to tailor their riding position. Factory-style Renthal handlebar and pad come standard.
Upper triple clamp with two sets of handle mount slots and reversible handle mounts offers riders a choice of four handle positions to choose from: 25 mm FWD, 15 mm FWD, STD and 10 mm BK.
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Tuned to best suit race-experienced riders, the 249 cm3 liquid-cooled, 4-stroke single's wide power-band focuses on high-rpm performance and extends way into the over-rev. Highly acclaimed for its high output and smooth power delivery, the 2019 model KX250 backs up its dual-injected power and race-inspired tuning with the short downdraft-style intake duct, a large diameter and carefully tuned exhaust header pipe, matched to the optimised intake camshafts timing and the advanced dual injection EFI system results in excellent power/torque feeling make it easier to ride fast and enabling fast lap times. Bottom-end to mid-range: The strong power/torque translates to smooth power engagement, making it easier to use the power band and requiring less attention to be spent on clutch work. Top-end: Thanks to the smooth power engagement, the high-rpm range is easy to use.
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The use of the world's first dual injectors for a production motocrosser is a key component of the KX250's highly acclaimed fuel-injected performance. Tuned for high performance, its high-revving character is complemented by superb response. The short downdraft-style intake duct enhances the power and torque across the mid-top-end engine speed range.
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The downstream injector is used to ensure smooth instant response while the upstream injector is charged with providing power. As RPM and throttle position increase, primary operation switches from the downstream injector to the upstream injector.
Both fuel injection are fine atomising injectors with 4 holes, dispersing spray particles with a droplet size of 120 µm from the upstream injector and 75 µm fro the downstream injector. The downstream injector's finer droplet size and wider spray angle contribute to stronger low-mid range power feeling, improved response and quicker acceleration.
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Riders can choose from two positions on the footpegs to suit their body size and personal preferences.
The adjustable brackets enable riders to lower the footpeg position 5mm. In the lower position, centre of gravity is lowered as is the rider's point of view, adding to both the physical and psychological stability.
Engine 4-stroke Single
Displacement 249 cc
Bore x Stroke 78.0 x 52.2 mm
Compression Ratio 14.1:1
Valve System DOHC, 4 valves
Fuel System Fuel injection: ø44 mm x 1, with dual injectors
Ignition Digital DC-CDI
Starting Electric
Cooling Liquid-cooled
Lubrication Forced lubrication, semi-dry sump
Transmission 5-speed, return
Primary Reduction Ratio 3.350 (67/20)
Gear Ratio: 1st 2.077 (27/13)
Gear Ratio: 2nd 1.688 (27/16)
Gear Ratio: 3rd 1.438 (23/16)
Gear Ratio: 4th 1.235 (21/17)
Gear Ratio: 5th 1.045 (23/22)
Final Reduction Ratio 3.846 (50/13)
Clutch Wet multi-disc, manual
Final Drive Chain
Frame Perimeter, aluminium
Front Suspension ø48 mm inverted fork with adjustable compression and rebound damping
Rear Suspension New Uni Trak with adjustable dual-range (high/low-speed) compression damping, adjustable rebound damping and adjustable spring preload
Front Wheel Travel 314 mm
Rear Wheel Travel 316 mm
Rake 27.1°
Trail 118 mm
Steering Angle (L/R) 42° / 42°
Front Tyre 80/100-21 51M
Rear Tyre 110/90-19 62M
Front Brake/s Semi-floating ø270 mm petal disc
Front Caliper/s Dual-piston
Rear Brake ø240 mm petal disc
Rear Caliper Single-piston
Dimensions (LxWxH) 2,190 x 820 x 1,270 mm
Wheelbase 1,485 mm
Road Clearance 345 mm
Seat Height 960 mm
Curb Mass 108 kg
Mass without Fuel 103.4 kg
Fuel Capacity 6.2 litres
Model Code KX252CRFAN