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Home / Motorcycles /Motocross / 2021 KX250X

2021 KX250X

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Kawasaki 2021 KX250X for Sale at Kawasaki Epping in Epping, VIC | Specifications and Review Information


A NEW KIND OF KX: KX250-BASED CROSS-COUNTRY RACER

The KX brand is no longer just for motocross! With the release of the 2021 KX250X, Kawasaki brings KX performance to the cross-country scene. Based on the championship-winning KX250 motocrosser, the new cross-country racer boasts an arsenal of factory-style features along with the engine and chassis performance that makes the KX250X such a potent off-road contender. X specific tuning for the engine, suspension and brakes, complemented by a 21"/18" wheel combination fitted with enduro-type tyres, and convenient standard features like a side stand and skid plate make the new KX250X even more attractive for cross-country competitors.

FEATURES

  • Fuel-injected 249cm3 liquid-cooled 4-stroke, single cylinder engine.
  • New slim, ergonomic bodywork KX450 styling with long, smooth surfaces and flatter tank-seat line.
  • Revised, KX450-based frame and KX450 Swingarm offer improved handling and increased rear wheel traction.
  • KX450 Hyrdaulic Clutch offering more direct feel and light lever action for more consistent feeling.
  • Updated Race Ready Suspension optimised for increased feedback on aggressive trails.
  • Ease of use with Electric Start and lightweight compact Li-ion battery.
  • Front 21" and Rear 18" wheels and enduro-type tyres are well suited to the cross country riding conditions.
  • High performance KYB 48mm dia inverted coil-spring fork (with Kashima Coat) matched to a new KYB shock unit.
  • Factory-style 28.6mm Renthal Aluminium Fatbar reduces vibration and shock transmitted to the rider.
2021 KX250X - FACTORY-STYLE ENGINE COMPONENTS AND TUNING

FACTORY-STYLE ENGINE COMPONENTS AND TUNING

The powerful fuel-injected 249 cm3 liquid-cooled, 4-stroke Single from the KX250 features finger-follower valve actuation, dual injectors and downdraft-style intake to deliver hard-hitting performance complemented by a robust low-mid range. Engine maps optimised for the X scene deliver a broad spread of useable power and facilitate minute throttle control.
2021 KX250X - FINGER-FOLLOWER VALVE ACTUATION

FINGER-FOLLOWER VALVE ACTUATION

Like the KX450 and KX250, the KX250X features a valve train designed by Kawasaki's World Superbike engineers. Finger-follower valve actuation enables the use of large-diameter valves and aggressive cam profiles.
2021 KX250X - HIGH PERFORMANCE PISTON

HIGH PERFORMANCE PISTON

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. A dry film lubricant coating on the piston skirts reduces friction at low rpm and helps with the piston bedding-in process.
2021 KX250X - HYDRAULIC CLUTCH

HYDRAULIC CLUTCH

Like the KX450, a hydraulic clutch offers direct feel and light lever action. Less play as the clutch heats up during heavy use results in more consistent feeling. The use of coned-disc springs contributes to lighter clutch actuation when the lever has been pulled in, and a wider clutch engagement range, which facilitates control (especially when half-clutching).
2021 KX250X - ELECTRIC START & BATTERY

ELECTRIC START & BATTERY

Being able to restart an engine quickly during a race can mean the difference between keeping your lead, or having to fight your way back through the pack. Electric start makes restarting the engine as easy as pushing a button. Lightweight, compact Li-ion battery helps keep weight to a minimum.
2021 KX250X - LIGHTWEIGHT FRAME

LIGHTWEIGHT FRAME

Well-balanced frame from the KX250 contributes to the KX250X's light weight, light handling, and slim ergonomics. The slim aluminium perimeter frame is a lightweight construction composed of forged, extruded and cast parts. Overall rigidity balance was optimised to deliver both light handling and excellent traction.
2021 KX250X - EASY ENGINE TUNING: DFI SETTING DATA SELECTION (3 MAP CHOICES)

EASY ENGINE TUNING: DFI SETTING DATA SELECTION (3 MAP CHOICES)

Adjusting engine settings to suit conditions has never been easier when using 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 maps). Initial settings for the three maps are: Standard, Hard and Soft conditions. FI couplers, enables riders to easily switch between the three maps to suit riding conditions. Each of the three maps can be reprogrammed using the optional accessory - KX FI Calibration Kit.
2021 KX250X - X WHEELS AND TYRES

X WHEELS AND TYRES

While the KX250 features F21"/R19" aluminium rims, the KX250X uses a F21"/R18" combination that facilitates putting the KX250X's power to the ground. Dunlop AT81 enduro-type tyres complement the X-specific wheels and are well-suited to the situations encountered in cross country riding.
2021 KX250X - CROSS COUNTRY EQUIPMENT

CROSS COUNTRY EQUIPMENT

Sturdy skid plate helps to protect the underside of the engine, and facilitates sliding over obstacles encountered on the trail. Convenient side stand comes in handy when stopping away from the paddock area.
2021 KX250X - STRONG BRAKING PERFORMANCE

STRONG BRAKING PERFORMANCE

KX450 front master cylinder and petal disc brakes are among the KX250's numerous factory-style components. The stylish discs contribute to both sporty looks and a high-quality appearance.
2021 KX250X - RACER-FRIENDLY ERGONOMICS

RACER-FRIENDLY ERGONOMICS

Factory-style Ø28.6 mm (1-1/8") Renthal aluminium Fatbar, a popular aftermarket part, is now a standard feature. The thicker handlebar helps reduce vibration and shocks transmitted to the rider, while the new grip position (19 mm lower, 8 mm 10 closer) helps put the rider in a position that makes it easier to weight the front wheel.
2021 KX250X - KX FAMILY STYLING

KX FAMILY STYLING

Complementing the KX250X's sleek bodywork, KX factory-style graphics ensure it is the sharpest looking bike in the paddock and further reflect the high potential of its KX-based performance. Coloured highlights on the suspension adjusters and engine oil cap and generator cover plugs contribute to a distinctive Kawasaki look while strengthening the KX family image.
2021 KX250X - PRECISION ENGINE TUNING

PRECISION ENGINE TUNING

The optional accessory KX FI Calibration Kit features the handheld KX FI Calibration Controller, which enables riders to adjust engine characteristics (by rewriting actual data maps) to suit their preference. This convenient tool can be used without a PC, simply by plugging into the engine's ECU.
2021 KX250X - THE HOLESHOT ADVANTAGE

THE HOLESHOT ADVANTAGE

The KX250X features a launch control system similar to that on our AMA factory motocross racers. With the simple press of a button, riders can activate a separate engine map designed to ensure efficient race starts in low-traction conditions. (The Launch Control Mode map retards ignition timing, allowing tyres to gain grip, and allowing riders to focus on their lines.)
Model KX250X (KX252DMFNN)
Engine Type 4-stroke, liquid cooled, single cylinder
Displacement 249 cm3
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
Transmission 5-speed, return
Clutch Wet multi-disc, manual
Frame Perimeter, aluminium
Wheel Travel - front 314 mm
Wheel Travel - rear 316 mm
Tyre Size-front 80/100-21 (51M)
Tyre Size-rear 110/100-18 (64M)
Suspension - front Ø48 mm inverted telescopic fork with adjustable compression and rebound damping
Suspension - rear New Uni-Trak with adjustable dual-range (high/low speed) compression damping, adjustable rebound damping and adjustable preload
Brakes - front Single semi-floating 270 mm semi-floating petal disc with dual piston caliper.
Brakes - rear Single 240 mm petal disc with single piston caliper.
L X W X H 2,170 x 820 x 1,260 mm
Wheelbase 1,480 mm
Ground Clearance 330 mm
Seat Height 945 mm
Fuel Capacity 6.2 litres
Curb Mass 109.2 kg (includes full fuel tank, all fluids at optimum levels)
Colour Lime Green