2017 Husqvarna® FX 490 with SMX 129 Yeti

2017 Husqvarna® FX 450

Husqvarna Motorcycles new for 2017 FX 450 offers class leading performance in a lightweight, capable package. All aspects are designed to offer exceptional performance in conjunction with rider comfort and ergonomics making the FX 450 equally appealing to amateur and professional off-road riders alike. Traction control, map select and WP AER 48 forks are just a few of the standard features which ensure the FX 450 embodies premium quality and feel.

• 44 mm throttle body

The FX 450 features the same 44 mm Keihin throttle body found on the FC 450. The injector is positioned to ensure the most efficient flow into the combustion chamber while to ensure optimal throttle response the throttle cable is mounted directly without a throttle linkage providing more immediate throttle response and feeling.

• EMS

The Keihin EMS is specifically designed to be smaller, lighter and faster at processing data. It integrates launch control for perfect starts, selectable engine maps via the switch on the handlebar as well as traction control. Combined with the new gear sensor, power delivery is tailored for each gear.

• Launch control

Launch control is easily engaged from the handlebar map switch. This function limits the amount of power to the rear wheel, improving traction and preventing loss of control under hard acceleration at the start line.

• Electric starter

Along with the benefit of easy starting the electric starting system is combined with a compact Li-Ion battery which is 2.2 pounds lighter than a conventional battery. The wiring harness has been purposefully designed so that the rear subframe can be removed without having to remove any wiring.

• Engine

The SOHC engine is the perfect example of the advanced engineering techniques used by Husqvarna motorcycles offering a peak power of 63 hp at an overall weight of just 61.3 pounds. Mass-centralization is key in the engine design, enabling chassis engineers to position the engine closer to the center of gravity for optimal handling and maneuverability.

• Crankshaft

The inertia produced by the crankshaft is carefully calculated to deliver optimal traction and ride-ability from the powerful 450 cc plant. The crankshaft is specifically positioned to harness the rotating mass in the ideal center of gravity resulting in a lightweight and agile handling feel. A plain big end bearing comprising of two force-fitted bearing shells ensure maximum reliability and durability, guaranteeing long service intervals of 100 hours.

• Crankcase

The crankcases are designed to house the shaft arrangements and internals of the engine in the position that offers the best possible centre of gravity. Additionally, the position of the clutch shaft keeps the clutch above the oil level resulting in decreased friction and increased efficiency.