2017 Husqvarna FC 250

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Husqvarna press release below:

The 250cc DOHC engine has been designed in conjunction with the chassis to operate in perfect harmony. All internal components have been engineered to deliver the maximum possible performance and packaged in order to position the engine at the ideal center of gravity within the chromoly steel frame. In combination with the carbon fiber rear subframe and new WP AER 48 fork, the FC 250 is one of the most technologically advanced 250 4-stroke motocrossers developed to date.

Engine

All major components and shaft arrangements have been carefully designed and placed in specific positions that best suit the performance and handling characteristics of the overall package. The 250 cc engine is not only light at 57.5lbs but also remarkably powerful with an overall power output of 46 hp at the output shaft. In order to achieve this, all components are engineered to produce the least amount of friction possible reducing drag as a result.

  • Engine design - light and compact for optimized mass-centralization.
  • Outstanding performance - 46hp peak power and 14,000 rpm rev-limit.
  • Low friction - reduces overall drag.

Cylinder head

While keeping the same structural integrity.

  • Large titanium valves (32.5 mm intake, 26.5 mm exhaust) - optimal intake and exhaust-flow.
  • Finger followers with DLC coating - reduced friction, better performance.
  • Carefully designed combustion chamber - optimal power throughout the rev-range.

Cylinder and piston

The 78mm bore cylinder houses a forged bridged-box-type piston made by CP. Both the cylinder and piston are professionally engineered from high strength aluminum resulting in outstanding performance and reliability. The compression ratio is 14.4:1.

  • Large 78mm bore and large diameter valves - high-revving, quick response.
  • Forged box-type - high performance and reliability.

Crankshaft

The crankshaft is designed to offer the best possible performance all while being placed in the perfect position to centralize oscillating masses for optimal handling. The plain big end bearing features two force-fitted bearing shells ensuring maximum reliability and durability guaranteeing long service intervals of 100 hours.

  • Plain big end bearing with force-fitted bearing shells - increased durability and service intervals.

Crankcases

All new generation Husqvarna motocross engines are designed with mass centralization and weight reduction as main criteria. As a result, the crank-cases have been designed to house the internal components of the engine in the perfect position to achieve the ideal center of gravity while adding the least possible weight. The casings are manufactured using a high-pressure die cast production process, resulting in thin wall thickness while retaining exceptional reliability. The iconic Husqvarna logo adorns the bronze finished crankcase covers.

  • Crankcases - light and compact; optimized mass-centralization.
  • High pressure die cast production process - thin walls for reduced weight, while maintaining strength.

Gearbox

The 5-speed gearbox has been designed to be extremely light and durable while featuring specific motocross specific ratios. The shifting fork has a low-friction coating for smoother shifting, while the gear lever is designed to prevent dirt build-up and ensure perfect gear selection in all conditions. An advanced gear sensor allows for specific engine maps delivering the best possible performance in each gear.

  • New lighter 5-speed gearbox - increased durability and improved shifting.
  • Integrated gear sensor - specific engine maps for each gear.

CSS clutch

The 250cc and 350cc engines feature a CSS (coil spring steel) clutch with Magura hydraulics. The CSS clutch has 6 coil springs and 7 clutch plates, and a one-piece CNC machined steel clutch basket.

  • CSS clutch - lightweight and reliable.
  • Magura hydraulic system - high quality, perfect clutch modulation.

Benefits

  • Class leading performance and weight.
  • Industry-first motocross traction control.
  • Carefully calculated weight distribution for top-level handling and maneuverability.
  • Advanced electronics for maximum performance.
  • Hydraulic clutch and reliable gearbox for precise and smooth shifting.
  • Reliable and dependable electric start.

Credit
Husqvarna
First Look: 2017 Husqvarna Motocross Models
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