ID # 35091235

2025 Kawasaki KX450SR

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Overview
Featuring special tuning and elite-level racing components, the limited edition KX450SR motorcycle is built to win right out of the box. This bike is designed to further elevate the performance, durability and styling of the already championship-proven KX450 platform by partnering up with the most respected names in the sport. With only limited quantities available, now is your chance to cross the finish line first with this one-of-a-kind race machine.

FEATURING:

  • 449cc 4-STROKE ENGINE WITH POLISHED INTAKE PORTS
  • PRO CIRCUIT TI-6 TITANIUM RACE EXHAUST
  • SPECIALIZED ECU FI SETTINGS
  • 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
  • ø49 mm SHOWA COIL-SPRING FORK WITH KASHIMA AND TITANIUM COATINGS
  • SHOWA REAR SHOCK WITH KASHIMA COATING
  • XTRIG ROCS-TECH TRIPLE CLAMP WITH PHDS (PROGRESSIVE HANDLEBAR DAMPING SYSTEM)
  • FACTORY RACE TEAM-INSPIRED GRAPHICS

ADDITIONAL VEHICLE FEATURES:

  • Lightweight aluminum perimeter frame
  • Coned disc-spring hydraulic clutch
  • Hinson clutch cover with Kawasaki logo
  • Renthal rear sprocket and D.I.D gold chain
  • D.I.D DirtStar ST-X rims
  • ERGO-FIT adjustable ergonomics
  • ODI Lock-On grips
  • Brembo front brake system with ø270 mm disc
  • Quick-release side cover and tool-less air filter access

Specifications
Model
KX450SR
Category Name
Motocross
Year
2025
Sale Type
New
Manufacturer
Kawasaki
Color
Lime Green
technology

2025 Kawasaki KX450SR Engine Management Technology

KTRC (KAWASAKI TRACTION CONTROL)

KTRC, Kawasaki's advanced traction control system provides both enhanced sport riding performance and the peace of mind to negotiate slippery surfaces with confidence. Multiple rider-selectable modes (the number of modes varies by model) offer progressively greater levels of intrusion to suit the riding situation and rider preference.

Less intrusive modes maintain optimum traction during cornering. Designed with sport riding in mind, they facilitate acceleration out of corners by maximizing forward drive from the rear wheel. And because Kawasaki’s sophisticated software bases its dynamic analysis on the chassis’ orientation relative to the track surface (rather than relative to a horizontal plane), it is able to take into account corner camber, gradient, etc., and adapt accordingly.

In the more intrusive modes (and for some models, in any mode), when excessive wheel spin is detected, engine output is reduced to allow grip to be regained, effectively enabling riders to negotiate both short, slippery patches (train tracks or manhole covers) and extended stretches of bad roads (wet pavement, cobblestone, gravel) with confidence.

Models equipped with IMU incorporate chassis-orientation feedback to offer even more precise management.

POWER MODES 2025 Kawasaki KX450SR

Models equipped with multiple Power Modes offer riders an easily selectable choice of engine power delivery to suit riding conditions or preference. In addition to Full Power mode, one (Low) or two (Middle, Low) alternate mode(s) in which maximum power is limited and throttle response is milder are provided.

SMARTPHONE CONNECTIVITY 2025 Kawasaki KX450SR

Clever technology enables riders to connect to their motorcycle wirelessly. Using the smartphone application “RIDEOLOGY THE APP,” a number of instrument functions can be accessed, contributing to an enhanced motorcycling experience. Vehicle information (such as the odometer, fuel gauge, maintenance schedule, etc) can be viewed on the smartphone. Riding logs (varies by model, but may include GPS route, gear position, rpm, and other information) can be viewed on the smartphone. When connected, telephone (call, mail) notices are displayed on the instrument panel. Riders can also make changes to their motorcycle’s instrument display settings (preferred units, clock and date setting, etc) via the smartphone. And on certain models, it is even possible to check and adjust vehicle settings (such as Rider Mode, electronic rider support features, and payload settings) using the smartphone.

 

LAUNCH CONTROL MODE 2025 Kawasaki KX450SR

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.

power
Clutch
Wet multi-disc, manual
Engine
449cc, liquid-cooled, 4-stroke, DOHC 4-valve single
Ignition
Digital DC-CDI
Starting
Electric
Final Drive
Chain
Fuel System
Fuel injection: ø44 mm x 1
Lubrication
Forced lubrication, semi-dry sump
Transmission
5-speed, return
Bore X Stroke
96.0 x 62.1 mm
Compression Ratio
12.5:1
performance
Frame
Perimeter, aluminum
Rear Tire
120/80-19 63M
Front Tire
80/100-21 51M
Rear Brake
ø240 mm petal disc with single-piston caliper
Front Brakes
Semi-floating ø270 mm petal disc with dual-piston caliper
Rake / Trail
27.1° / 119 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 / 307 mm (12.1 in)
Front Suspension / Wheel Travel
ø49 mm inverted fork with adjustable compression and rebound damping / 305 mm (12.0 in)
details
Wheelbase
1,485 mm (58.5 in)
Seat Height
955 mm (37.6 in)
Curb Weight*
112.6 kg (248 lb)
Fuel Capacity
6.2 litres
Road Clearance
340 mm (13.4 in)
Weight Without Fuel
108.1 kg (238 lb)
Dimensions (L X W X H)
2,185 x 820 x 1,270 mm (86.0 x 32.3 x 50.0 in)
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