2025 Kawasaki KX 450 SR

Lime GreenNew Motorcycles

MSRP

$13,599

MSRP or Price does not include $550 in destination charges.
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BUILT TO WIN
Featuring special tuning and elite-level racing components, the limited-edition KX™450SR motorcycle is built to win right out of the box. Based off the championship-proven KX™450 platform, this bike is designed to further elevate the performance, durability, and styling by featuring components from the most respected brands in the sport. Available in limited quantities, this is your chance to cross the finish line first with this elite race machine.
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2025 Kawasaki KX 450 SR

Condition
New
Category
Motorcycles
Model Type
KX - Full-Size MX
Model Code
KX450PSFNN
Color
Lime Green

Advanced Technology

  • RIDE CONFIDENTLY: Offering quick, reliable starting, and advanced braking power backed by decades of championship-proven experience, the KX™450SR motorcycle delivers superior technology designed to inspire confidence from the gate drop to the finish line.
  • POWER IN YOUR HANDS: Enjoy power mode selection at the push of a button located on the handlebar of the KX™450SR motorcycle. This feature allows riders to switch between 2 power modes (Normal or Aggressive response) quickly and easily. Riders can select between Normal and Aggressive response to suit riding conditions or preference. The Aggressive mode is exclusive to the KX™450SR and was developed with feedback from racers, making this model well-suited to competitive riding.
  • KAWASAKI TRACTION CONTROL: The 2025 KX™450SR motorcycle features Kawasaki TRaction Control (KTRC) at the push of a button. Using the traction button (T) on the left handlebar switch, riders can quickly and easily select from 2 levels (Weak or Strong) of traction control to suit riding conditions and preference. Riders may also elect to turn the system off.
  • POWER TO THE GROUND: A factory-style launch control system helps put the KX™450SR motorcycle’s power to the ground for maximum acceleration. By pushing the Mode and Traction buttons simultaneously, riders activate the launch control system designed to deliver efficient race starts in low-traction conditions, making the holeshot yours for the taking.
  • SMARTPHONE CONNECTIVITY: Thanks to smartphone connectivity, riders can adjust engine mapping straight from their phones via RIDEOLOGY THE APP KX™, without any extra equipment. The app also provides KX™ FI Calibration to check fuel volume and ignition timing, engine monitoring for checking engine metrics, a maintenance log for recording memo-style logs, and many more useful functions.

Chassis, Ergonomics, & Styling

  • THE ADVANTAGE IS YOURS: With agile handling, a strong and lightweight chassis, and ERGO-FIT® adjustable components, you’ll experience an unmatched race-winning advantage on the KX™450SR motorcycle. Stand out from the crowd with factory-edition styling, featuring Monster Energy® Kawasaki race team-inspired graphics, Lime Green handlebar pad, Metallic Magnesium Gold cylinder head cover, and a Hinson clutch cover.
  • PRECISE BALANCE: Stay ahead with a lightweight aluminum perimeter frame and swingarm that provide fantastic overall rigidity balance and contribute to precise cornering. Enjoy front-end feel that’s predictable while maintaining maximum traction through the rear wheel.
  • DURABILITY ELEVATED: A D.I.D gold chain and Renthal® rear sprocket handle gearing duties while D.I.D Dirt Star ST-X rims offer enhanced style and durability to the wheelset.
  • ADVANCED STOPPING POWER: Next-level stopping power matches incredible acceleration capability. The high-performance brake system features drilled Braking/Sunstar discs (270/240mm) paired with a Brembo caliper and master cylinder at the front and a Nissin caliper and master cylinder at the rear. The high-performance system offers increased control during braking, contributing to enhanced corner entry.

Power & Performance

  • LIMITED-EDITION RACER: The KX™450SR motorcycle is designed for serious competitors seeking race wins. Featuring elite-level racing components, special tuning, and design updates inspired by the Monster Energy® Kawasaki race team, this limited-edition Special Racer boasts elevated performance and factory racer looks. Performance gains come thanks to updates* to the engine, exhaust, suspension, engine mapping, and wheels. (*When compared to 2025 KX™450 motorcycle.)
  • MORE POWER TO DOMINATE: Thanks to polished intake ports, a high-performance Pro Circuit exhaust, specialized ECU FI settings, and tuning, the 2025 KX™450SR motorcycle offers considerably stronger power and torque at mid- to high-rpm than the base KX™450 motorcycle.
  • KEEP IT LIGHT: Experience increased engine performance and lighter weight with a Pro Circuit titanium race exhaust system*. (*When compared to 2025 KX™450 motorcycle.)
  • LIGHT PULL & SELF-ADJUSTING: A coned disc-spring hydraulic clutch offers light clutch pull and a wide engagement range. Large-diameter plates provide enhanced fade resistance.

Race-Ready Suspension

  • SHOW THEM HOW IT’S DONE: Enjoy smooth action, firm damping, and optimal traction with the highly adjustable Showa suspension package on the KX™450SR motorcycle. The Showa suspension package on the KX450SR is inspired by the machines ridden by the Monster Energy® Kawasaki race team with optimized settings to achieve higher performance, smoother suspension action, and provide a plush feeling.
  • RACE READY: Experience unmatched suspension performance with the highly adjustable 49mm Showa Coil Spring Front Fork. Kashima Coating creates a hard, low-friction surface on the fork's outer tubes. Large-diameter inner tubes with titanium coating deliver smooth, low-friction action and allow the use of large damping pistons for race-winning performance.
  • GAIN TRACTION: The adjustable dual-range (high- and low-speed) compression damping, adjustable rebound damping, and adjustable preload come thanks to the new Uni-Trak® rear suspension system, featuring a Showa shock with Kashima Coating outer tube. The result is unmatched damping and rear-wheel traction.
  • PERFECT FIT: The XTRIG ROCS-TECH (Revolutionary Opposed Clamping System) clamps the upper fork tubes from opposite directions helping to reduce inner tube distortion and allowing the fork to flex naturally. The PHDS (Progressive Handlebar Damping System) absorbs vibrations while maintaining steering precision. This also increases the available handlebar mounting which can be adjusted to 12 different positions. A factory-style aluminum Renthal® Fatbar® handlebar comes standard.

General Information

Manufacturer
Kawasaki
Model Year
2025
Model
KX 450 SR
Model Code
KX450PSFNN
Color
Lime Green

Brakes/Wheels/Tires

Brakes

Front - Single semi-floating 270 mm Braking / Sunstar petal disc with Brembo master cylinder and dual-piston caliper

Rear - Single 240 mm Braking / Sunstar petal disc with single-piston caliper

Rims
D.I.D DirtStar ST-X
Tires

Front - 80 / 100-21

Rear - 120 / 80-19

Dimensions

Length
Overall - 86 in.
Height
Overall - 50 in.
Width
Overall - 32.3 in.
Weight

Curb - 238.2 lb.* without fuel

Curb - 248.2 lb.*

*Curb weight includes all necessary materials and fluids to operate correctly, full tank of fuel (more than 90 percent capacity) and tool kit (if supplied).

Ground Clearance
13.4 in.
Wheelbase
58.5 in.
Seat Height
37.6 in.

Drivetrain

Transmission
5-speed, return shift
Final Drive
Chain
Chain
D.I.D gold
Sprocket
Rear - Renthal®

Electrical

Advanced Electronics
Electronic Rider Aids - Power Modes, Kawasaki TRaction Control (KTRC), Launch Control Mode

Engine

Engine
4-stroke, DOHC
Cooling
Liquid
Cylinders
Single
Displacement
449 cc
Bore x Stroke
3.8 x 2.4 in. (96 x 62.1 mm)
Compression Ratio
12.5:1
Clutch

Wet multi-disc manual and hydraulic actuation

Coned disc-spring hydraulic

Fuel System
DFI® with 44 mm Keihin throttle body
Ignition
Digital CDI with handlebar-controlled power modes
Fuel Capacity
1.64 gal.

Operational

Frame
Aluminum perimeter
Front Suspension

49 mm Showa inverted telescopic coil-spring fork with 21-way adjustable compression and 22-way adjustable rebound damping

Travel - 12 in.

Rear Suspension

Uni-Trak® gas charged shock with piggyback reservoir with adjustable dual-range compression damping (19-way low speed and 4.25 turn stepless high speed), 23-way adjustable rebound damping and stepless adjustable preload

Travel - 12.1 in.

Rake
26.6°
Trail
4.5 in.
Grips
ODI lock-on

Other

Includes

Special Features - Smartphone Connectivity via RIDEOLOGY THE APP KX™, ERGO-FIT®

Hinson clutch cover with Kawasaki logo

Quick-release side cover and tool-less air filter access

Gallery

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Promotions

We are in the process of adding model data for the new 2024, 2025 Kawasaki models. We do everything we can to ensure that all of our information is correct; however, during the initial entry process, we reserve the right to make additions, deletions, or modifications to model specifications, features, images and prices displayed on this and any associated webpage at any time without prior notice. Please contact your local dealer to confirm information.

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POLARIS OFFROAD VEHICLES: Manufacturer’s suggested retail price (MSRP) subject to change. The MSRP is subject to a potential maximum increase of 5% for pre-ordered vehicles that ship after March 31, 2022. MSRP also excludes destination and handling fee, tax, title, license and registration. Dealer prices may vary..

*Price, if shown, does not include government fees, taxes, dealer vehicle freight/preparation, dealer document preparation charges or any finance charges (if applicable). MSRP and/or final actual sales price will vary depending on options or accessories selected.