Quick-release side cover and tool-less air filter access
FEATURING
449 cc 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
POWER & PERFORMANCE
More Power to Dominate — Thanks to polished intake ports, a high-performance Pro Circuit exhaust, specialized ECU FI settings, and tuning, the 2025 KX450SR offers considerably stronger power and torque at mid- to high-rpm than the base KX450 model.
Keep It Light — Experience increased engine performance and lighter weight with a Pro Circuit titanium race exhaust system*.
Light Pull & Self-Adjusting — A coned disc-spring hydraulic clutch offers light clutch pull and a wide engagement range.
RACE-READY SUSPENSION
Race Ready — Experience unmatched suspension performance with the highly adjustable ø49 mm Showa Coil Spring Front Fork.
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.
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.
CHASSIS, ERGONOMICS, & STYLING
Precise Balance — Stay ahead with a lightweight aluminum perimeter frame and swingarm that provide fantastic overall rigidity balance and contribute to precise cornering.
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.
ADVANCED TECHNOLOGY
Power In Your Hand — Enjoy power mode selection at the push of a button located on the handlebar of the KX450SR motorcycle.
Kawasaki TRaction Control — The 2025 KX450SR motorcycle features Kawasaki TRaction Control (KTRC) at the push of a button.
Power to the Ground — A factory-style launch control system helps put the KX450SR motorcycle’s power to the ground for maximum acceleration.
Smartphone Connectivity — Thanks to smartphone connectivity, riders can adjust engine mapping straight from their phones via RIDEOLOGY THE APP KX, without any extra equipment.