The FE 350 is known for its versatility in all types of terrain. With a lightweight chassis and ample performance, the FE 350 possesses a 450-rivalling power-to-weight ratio while keeping the light and agile feel of a 250. Combined with WP suspension, traction control and comfortable ergonomics, the FE 350 is second to none when the going gets tough.

Engine

The DOHC 350cc engine is second to none in terms of versatility. Sharing much of its architecture with the FE 250 engine, the FE 350 delivers a significant increase in power and torque giving its lightweight character 450-rivalling power.

  • Performance, weight, mass centralisation → ride-ability
  • Lightweight and compact → 450 rivalling power-to-weight ratio

Cylinder head

The FE 350 features an advanced DOHC cylinder head layout meticulously engineered to deliver performance and reliability. Internally, the DOHC layout features polished camshafts and low-friction DLC-coated finger followers. Together with the lightweight titanium valves – 36.3 mm intake and 29.1 mm exhaust – they aid in delivering optimal performance.  

  • Lightweight titanium valves → 36.3 mm intake and 29.1 mm exhaust
  • Polished camshafts, Finger followers with DLC coating → minimal friction

Cylinder and piston

The 88 mm bore and 57.5 mm stroke cylinder features a compression ratio of 13.5:1, and a large diameter yet lightweight forged box-type piston. As a result, the low oscillating mass delivers exceptional power, high revs and a broad, usable power band.

  • Lightweight 88 mm diameter piston → reduces oscillating masses
  • Forged box-type piston → optimised fit in combustion chamber
  • 13.5:1 compression ratio → high performance and reduced danger of engine knock

Crankshaft

The crankshaft is optimised for overall reliability to guarantee long service intervals of 135 hours. This has been made possible by a bush-type bearing at the connecting rod and two force-fitted bearing shells at the big-end bearing. Additionally, an oil supply to the main bearing is integrated within the engine casing.

  • Bush-type bearing on connecting rod → maximum reliability and long service interval
  • Plain big-end bearing with force-fitted bearing shells → 135-hour service interval

Counter-balancer shaft

In order to counteract the rotational force of the crankshaft and reduce vibration, the FE 350 engine uses a multifunctional counter-balancer shaft which also drives the water pump and timing chain.

  • Multifunctional counter-balancer shaft → reduced vibrations, compact design

Crankcases

The engine cases are engineered to house the shaft arrangements at the ideal centre of gravity. 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, mass-centralisation
  • High-pressure die-cast production process → thin walls for reduced weight, while maintaining strength

Gearbox

The 6-speed gearbox from Pankl Racing Systems uses specific wide-range enduro type gearing. Additionally, a gear sensor allows the EMS (Engine management system) to tailor the power delivery to each gear.

  • Pankl 6-speed gearbox → enduro-specific ratios
  • No-dirt gear lever → prevents dirt build-up for perfect control

DDS clutch

The FE 350 features a DDS (Dampened Diaphragm Steel) clutch. The exclusive characteristics of this system include a single diaphragm steel pressure plate instead of traditional coil springs, making the clutch action very light while the integrated damping system improves traction and durability. The clutch basket is a single-piece CNC-machined steel component that allows the use of thin steel liners and contributes to the compact design of the engine. The BRAKTEC hydraulic system ensures perfect modulation in all conditions.

  • DDS clutch → compact with better modulation and improved durability
  • BRAKTEC hydraulic system → perfect clutch modulation

Benefits

  • 450 performance with added manoeuvrability
  • 250 manoeuvrability and agility
  • Standard map switch and traction control
  • BRAKTEC hydraulic clutch for consistent, maintenance-free operation