Engine

• CHAMPIONSHIP-PROVEN POWER: The KX™450F motorcycle is lightweight and powerful due to innovative race-proven components. Pick a category to start exploring.
• ENGINE: Race-team-inspired bridged-box bottom piston is lightweight and designed to match intake valves to optimize combustion efficiency for maximum performance at all rpms. The powerful and lightweight engine delivers instant throttle response, broad power delivery and incredible peak power.
• EXHAUST: Exhaust header features an integrated resonator for crisp throttle response at low rpm and reduced exhaust sound level.
• INTAKES: Rear seat intakes ensure clean airflow and contribute to improved throttle response

Frame and Styling

• SLIM, LIGHTWEIGHT CHASSIS: Lightweight aluminum perimeter frame for sharp handling. Triple clamp offers optimal stability on corner entry to allow quick turn-in. Slim frame spars and narrow shrouds allow easy rider movement. Optimized swingarm rigidity for maximum rear wheel traction.
• AGGRESSIVE BODYWORK: Lightweight bodywork features in-mold graphics for a durable, aggressive look. Lightweight bodywork with smooth, seamless surface at the rider's contact points.
• ERGO-FIT™ ADJUSTABILITY: The adjustable handlebar mounts provide a choice of 4-positions (35 mm range of adjustment) enabling the rider to set-up their ideal riding position. Factory-style Renthal handlebar and handlebar pad come standard.
• ERGO-FIT™ FOOTPEGS: Two-position adjustable footpegs help reduce knee angle when seated. Footpegs allow the rider to adjust center of gravity by 5 mm.

Fuel Mapping

• ADVANCED FUEL MAPPING TECHNOLOGY: The KX™450F motorcycle features several advanced ignition and fuel-mapping systems for precise adjustability.
• DFI® COUPLERS: Factory-tuned power settings with plug-and-play versatility. Select a coupler to access one of the 3 different pre-set engine maps. Standard, hard and soft terrain setting options.
• LAUNCH CONTROL MODE: Maximizes traction and acceleration out of the gate. Race-team-derived feature for grabbing the holeshot. Engages with a press of a button. Functions in first and second gears. Precise ignition timing helps ensure quicker acceleration with less slippage.

Suspension

• SHOWA SFF-AIR TAC FORK: Lightweight design with tuned rigidity to match chassis dynamics and optimize front end feel. Features low-friction fork seals and optimized valve settings for smoothaction and progressive damping.