Championship-Proven Power: The 2017 KX450F motorcycle is lightweight and powerful due to innovative race-proven components.Chassis and Bodywork: The slim, lightweight, aluminum perimeter frame and revised triple clamps contribute to agile handling while a flat seat profile and integrated bodywork facilitate easy rider movement and a championship fit.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 smooth action and progressive dampingAdvanced Fuel Mapping Technology: The KX450F motorcycle features several advanced ignition and fuel-mapping systems for precise adjustability.
New, more powerful and lighter weight engine with an innovative downdraft design and upright engine orientationA slimmer, lighter aluminum perimeter frame contributes to razor-sharp handling and superior stabilityRevised Showa Separate Function Fork – Type 2 with optimal rigidity and settingsLaunch Control Mode helps maximize traction and acceleration out of the gate3 different DFI® couplers with easy plug-and-play technologyExclusive dual fuel injector design contributes to superior throttle response and excellent power delivery
High-performance liquid-cooled, 99cc 2-stroke engine6-position adjustable handlebar mount helps tailor ergonomics for a wide range of ridersSophisticated suspension components are adjustableLarger (19F, 16R) wheels than the KX85 (17F, 14R) contribute to a taller 34.3 inch seat height and higher 13.0 inch ground clearanceFront and rear disc brakesPowerEngine: 2-stroke, 1-cylinder, piston reed valve, water-cooledDisplacement: 99ccBore x Stroke: 52.5 x 45.8mmCompression ratio: 10.2:1 (low speed) - 8.7:1 (high speed)Fuel System: Keihin PWK28Ignition: CDI w/digital advanceTransmission: 6-speed, return shiftFinal Drive: Chain
