ID # 18791693

2022 Kawasaki KX250

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Overview
The championship-proven technology of KX race machines has now been tuned for off-road competition. Purposely designed to take on tough off-road conditions, the all-new KX250X motorcycle delivers the edge to ride ahead. No matter how technical the terrain, lead with confidence on the KX250X.

FEATURING  

  • POWERFUL, HIGH REVVING 249cc 4-STROKE ENGINE
  • RACE-READY  cross-country SUSPENSION
  • F21"/R18" WHEELS AND OFF-ROAD TIRES
  • SKID PLATE & SIDE STAND

ADDITIONAL VEHICLE FEATURES

  • Powerful, high-revving 249cc liquid-cooled, 4-stroke single
  • Finger-follower valve actuation
  • Dual injectors
  • Coned disc-spring hydraulic clutch
  • Electric start
  • Launch Control Mode
  • KX-style setting-adjustable motocross ECU
  • Fully adjustable suspension and high-performance brakes
  • F21”/R18” wheels with enduro-type tires
  • ERGO-FIT adjustable handlebar and footpeg positions
  • Factory-style Renthal Fatbar
  • Skid plate and side stand
Specifications
Model
KX
Year
2022
Sale Type
New
Manufacturer
Kawasaki
Color
Lime Green
Engine Size
249cc
High-revving
excitement
Factory-style
engine & chassis
power
Clutch
Wet multi-disc, manual
Engine
249cc, liquid-cooled, 4-stroke, DOHC 4-valve single
Ignition
Digital-CDI
Starting
Electric
Induction
Piston reed valve
Final Drive
Chain
Fuel System
Fuel injection: ø44 mm x 1, with dual injectors
Lubrication
Forced lubrication, semi-dry sump
Transmission
5-speed, return
Bore X Stroke
78.0 x 52.2 mm
Compression Ratio
14.1:1
details
Wheelbase
1,485 mm (58.5 in)
Curb Mass**
107.3 kg (237 lb)
Seat Height
950 mm (37.4 in)
Fuel Capacity
6.2 litres
Road Clearance
335 mm (13.2 in)
Mass Without Fuel
102.7 kg (226 lb)
Dimensions (L X W X H)
2,180 x 820 x 1,265 mm (85.8 x 32.3 x 49.8 in)
technology

Engine Management Technology

 DUAL INJECTORS

The Kawasaki KX250F was the first mass-production motocross bike to feature Dual Injectors. One injector is located downstream of the throttle valve, where injectors are located on standard FI systems, and a second is located upstream of the throttle valve, close to the airbox. The two injectors split their roles: operating at different rpm ranges, they ensure both smooth, instant response at low-rpm and high peak power at high-rpm. For cases that call for low-rpm operation like instantaneous acceleration off the start and precise control when cornering, primary operation falls to the downstream injector. Because it is positioned close to the combustion chamber, sprayed fuel can be supplied to the engine quickly, resulting in sharp response. Conversely, when high power is the priority, primary operation switches to the upstream injector, which focuses on high-rpm applications. Its location farther away from the combustion chamber means that the fuel has a longer travel time. This allows more time for the fuel particles and air to mix, as well as allowing the mixture to cool and condense. This means that when more power is needed, the cylinder can be filled with a greater quantity of high-quality mixture.


LAUNCH CONTROL MODE

In motocross racing, getting a good start is critical. A few tenths of a second can make the difference between getting the holeshot or not. In slippery conditions, getting the maximum drive from a motocrosser requires precise control of the both the clutch and throttle.

Launch Control Mode helps riders get a good start by complementing high-level technique with engine management. Featured on a mass-production motocrosser for the first time on the Kawasaki KX450F, the system activates a separate engine map designed to get a more efficient start off the line. The system is designed to the same specifications as that used by our factory racers competing in the AMA Supercross and Motocross championships.

Launch Control Mode is activated simply by pressing the button on the handlebar. The Launch Control map slightly retards ignition timing to help tame the engine's strong torque and reduce wheel spin off the start. Launch Control Mode is only active in the first two gears after the launch, disengaging and returning to the standard engine map automatically once the rider shifts into third gear. The system gives riders a great advantage when lining up at the gate and puts them in a better position to win.

 

Chassis Management Technology

ERGO-FIT

Proper fit is key for rider comfort and control. However, the ideal fit varies from rider to rider, depending on their physical dimensions and riding style.

 

ERGO-FIT is an interface system designed to allow riders to find their ideal riding position. Various points of the chassis interface (the handlebar, footpegs and seat, etc.) can be adjusted through a combination of interchangeable parts and parts with adjustable positions. This enables a wide range of riders to find a riding position that offers both comfort and control. Feeling at one with their machine, they will be able to experience how Kawasaki machines are fun and rewarding to ride.

*Adjustable parts and their range of adjustability vary by model.

positions. This enables a wide range of riders to find a riding position that offers both comfort and control. Feeling at one with their machine, they will be able to experience how Kawasaki machines are fun and rewarding to ride.

*Adjustable parts and their range of adjustability vary by model.

performance
Frame
Perimeter, aluminum
Rear Tire
100/90-19 57M
Front Tire
80/100-21 51M
Rear Brake
ø240 mm petal disc with single-piston caliper
Front Brake
Single semi-floating ø270 mm petal disc with dual-piston caliper
Rake / Trail
28.0° / 118 mm
Steering Angle (L/R)
42° / 42°
Rear Suspension / Wheel Travel
New Uni Trak with adjustable dual-range (high/low-speed) compression damping, adjustable rebound damping and adjustable spring preload / 316 mm (12.4 in)
Front Suspension / Wheel Travel
ø48 mm inverted fork with adjustable compression and rebound damping / 314 mm (12.4 in)
top features

FACTORY-STYLE ENGINE COMPONENTS AND TUNING

Championship-proven Performance

Recognized as the most powerful motocrosser in the paddock, the KX450 boasts innovative engine technology inspired by Kawasaki’s race machines. Features like finger-follower valve actuation and a bridged-box bottom piston that contribute to its lofty performance are backed by electric start and a hydraulic clutch, further elevating its race-winning potential.

SERIOUSLY POWERFUL ENGINE

The high-acclaimed KX450 engine delivers hard-hitting power, while its flat torque curve makes it easy to get on the gas. Finger-follower valve actuation (a valve train designed by Kawasaki’s World Superbike engineers) enables large-diameter valves and aggressive cams. Downdraft-style intake and friction-reduction efforts (like a dry film lubricant on the piston skirt) further contribute to the high performance.

ELECTRIC START

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.

HYDRAULIC CLUTCH


The hydraulic clutch offers direct feel and light lever action. Revised construction using coned-disc springs results in lighter clutch actuation when the lever has been pulled in, and a wider clutch engagement range, which facilitates control (especially when half-clutching).

ADJUSTABLE MX ECU

Lightweight and designed for the rigours of off-road riding, the ECU contains multiple programmable engine maps to offer riders an advantage on the race course. Using the provided DFI couplers, riders are able to easily switch from one to another of the three engine maps to suit riding conditions. The plug-and-play style system is quick, easy and stress-free. Each of the three maps can be reprogrammed using the optional KX FI Calibration Kit.

LAUNCH CONTROL

Factory-style launch control system increases the chance of getting a good start by helping riders maximise grip when starting on a low-traction surface.

FACTORY-STYLE CHASSIS COMPONENTS AND TUNING

Light, Nimble Handling

Trimmed of all unnecessary material, this is the leanest KX450 chassis to date. Frame, suspension, brakes and ergonomics have all been optimized to make the KX450 even better equipped to turn quick lap times.

FRAME
Lightweight Aluminum Perimeter Frame

Complementing the powerful engine, light, nimble handling contributes to the KX450’s quick lap times. Thanks to extensive weight-reduction efforts, the lightweight aluminum perimeter frame contributes to a highly-competitive, low overall weight of only 110.2 kg.

SUSPENSION

Race-Ready Suspension

Handling suspension duties up front is a high-performance ø49 mm inverted coil-spring fork. The large-diameter inner tubes (the same size as on our factory racers) enable the use of large damping pistons, delivering smooth action and firm damping. At the rear, New Uni Trak rear suspension contributes to superb rear-wheel traction.

BRAKES

Strong Stopping Power

The oversized ø270 mm semi-floating front disc complemented by a ø250 mm disc at the rear deliver strong stopping power and a high level of control.The oversized ø270 mm semi-floating front disc complemented by a ø250 mm disc at the rear deliver strong stopping power and a high level of control.

BODYWORK

Slim, Ergonomic Bodywork

The narrow frame and minimalistic bodywork offer a slim riding position that facilitates control.

 

ADJUSTABLE ERGONOMICS

Get the Perfect Fit

A choice of four handlebar positions and two footpeg positions allows riders to tailor their riding position to suit body size and preference. Factory-style ø28.6 mm (1-1/8”) Renthal aluminum Fatbar helps reduce vibration and shocks transmitted to the rider, while a lower, closer grip position helps put the rider in a position that makes it easier to weight the front wheel.

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