Race to victory on the bike built for winning. The KX250 motorcycle is the most competitive racing package yet, with an improved chassis, an updated engine, and all-new Power Mode Selection and Kawasaki TRaction Control (KTRC). Plus, cutting-edge technology like ERGO-FIT components and RIDEOLOGY THE APP KX offer maximum adjustability, so you can find your unique winning style. Be the fastest in the pack. Be the next champion on the KX250.
FEATURING:
249 cc 4-stroke engine with electric start
Cylinder head with straight exhaust port and centre exhaust
Aluminium perimeter frame
Power Mode selection with handlebar-mounted switch
Smartphone connectivity—change engine mapping with RIDEOLOGY THE APP KX
Kawasaki TRaction Control (KTRC) with handlebar-mounted switch
Dual injectors (upstream and downstream)
ERGO-FIT adjustable ergonomics for ride position optimisation
ADDITIONAL VEHICLE FEATURES:
Single -shaft primary crankshaft balancer
Coned-disc-spring hydraulic clutch
SHOWA ø49 mm coil-spring fork and single shock with revised settings
The base factors that have made the KX250 engine a standout performer in its class—finger-follower valve actuation, a downdraft-style intake, and dual injectors—are complemented by revised intake and exhaust layout and a single-shaft primary balancer, for an all-around stronger package with enhanced control better capable of challenging for race results.
FACTORY-STYLE CHASSIS COMPONENTS AND TUNING
Light & Agile
The KX250’s new frame is based on that of the 2024 KX450, and updates for 2025 to suit the new intake and exhaust layout help to deliver improved handling. Smooth bodywork is designed to facilitate rider movement and control, and fine-tuned suspension and brake components further contribute to the KX250’s light, agile handling. ODI Lock-On grips and a quick-release side cover add to convenience.
ADVANCED TECH AT YOUR FINGERTIPS
Power Modes, Kawasaki Traction Control, and Launch Control Mode Accessed from the Left Handle Switches
Complementing an updated Launch Control Mode, the new KX250 offers Power Mode selection and Kawasaki Traction Control at the push of a button. And with smartphone connectivity, riders can adjust engine maps right from their smartphones.
Technical Specifications
Engine
4-stroke Single
Displacement
249 cc
Bore x Stroke
78.0 x 52.2 mm
Compression Ratio
14.0:1
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
ø49 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
Race to victory on the bike built for winning. The KX250 motorcycle is the most competitive racing package yet, with an improved chassis, an updated engine, and all-new Power Mode Selection and Kawasaki TRaction Control (KTRC). Plus, cutting-edge technology like ERGO-FIT components and RIDEOLOGY THE APP KX offer maximum adjustability, so you can find your unique winning style. Be the fastest in the pack. Be the next champion on the KX250.
FEATURING:
249 cc 4-stroke engine with electric start
Cylinder head with straight exhaust port and centre exhaust
Aluminium perimeter frame
Power Mode selection with handlebar-mounted switch
Smartphone connectivity—change engine mapping with RIDEOLOGY THE APP KX
Kawasaki TRaction Control (KTRC) with handlebar-mounted switch
Dual injectors (upstream and downstream)
ERGO-FIT adjustable ergonomics for ride position optimisation
ADDITIONAL VEHICLE FEATURES:
Single -shaft primary crankshaft balancer
Coned-disc-spring hydraulic clutch
SHOWA ø49 mm coil-spring fork and single shock with revised settings
ODI Lock-On grips
Ergonomic shroud design
Quick-release side cover
content_description2
Power;Performance;Technology;Details#####Engine|4-stroke Single;Displacement|249 cc;Bore x Stroke|78.0 x 52.2 mm;Compression Ratio|14.0:1;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|ø49 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|305 mm;Rear Wheel Travel|307 mm;Rake|27.0°;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#####Dual Injectors|Yes;KTRC (Kawasaki Traction Control)|Yes;Launch Control Mode|Yes;Power Modes|Yes;Smartphone Connectivity|Yes;ERGO-FIT|Yes#####Dimensions (LxWxH)|2,190 x 820 x 1,265 mm;Wheelbase|1,485 mm;Road Clearance|340 mm;Seat Height|955 mm;Curb Weight*|109.5 kg;Weight without Fuel|105.0 kg;Fuel Capacity|6.2 litres;Model Code|KX252ETFNN
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