• The new 450 SX-F engine design is more compact, lighter and provides higher performance throughout the entire range of power.
• New electronic Launch Control for efficient starts and multiple engine maps to control the overall power delivery. Best sport bike ever.• Completely reworked Keihin Engine Management System with new 44mm throttle body featuring a lightweight direct-connect design
• New super compact and lightweight 1.1lb Lithium-Ion starter battery.