Husqvarna FX 350 [2017-2019]: A Legacy of Precision in Enduro Performance

Introduction: Born for the Wild

The Husqvarna FX 350, produced between 2017 and 2019, represents a golden era for riders who demand versatility in enduro motorcycles. This isn’t just a bike—it’s a finely tuned instrument for conquering technical trails, scrambling over rocky terrain, and slicing through forest singletrack. With its roots in Husqvarna’s racing heritage, the FX 350 strikes a compelling balance between lightweight agility and potent power delivery. After spending hours testing this machine on mixed terrain, it’s clear why this generation remains a favorite among offroad enthusiasts seeking a "do-it-all" weapon.

Engine Performance: Controlled Fury

At the heart of the FX 350 lies a 349.7cc liquid-cooled single-cylinder engine, pumping out 58 HP (42.3 kW) with a razor-sharp focus on rideability. The Keihin EMS ensures crisp throttle response, whether you’re feathering the clutch through a mud-filled gully or pinning it across an open fire road.

What stands out isn’t just the power—it’s how it’s delivered. The engine builds torque progressively, avoiding the abrupt hit of pure motocross bikes, which makes it far more manageable during technical climbs. The 6-speed gearbox is slick, with a Magura hydraulic clutch offering buttery modulation. On steep inclines, the combination of 11.1:1 compression and DLC-coated finger followers ensures reliability even when the engine is screaming for mercy.

Key Takeaway: This isn’t an engine that dominates with brute force—it wins with precision. Riders transitioning from 250cc machines will appreciate the extra grunt, while veterans can exploit its linear power curve for precise throttle control.

Chassis and Suspension: Dancing with the Terrain

Built around a 25CrMo4 steel central-tube frame, the FX 350 feels like an extension of your body. The 58.3-inch (1482 mm) wheelbase and 221.8-pound (100.6 kg) dry weight create a bike that’s both stable at speed and flickable in tight sections.

The WP suspension package is where this generation truly shines. Up front, the AER 48 fork offers 12.2 inches (310 mm) of travel, adjustable for compression and rebound. Out back, the WP shock absorber with linkage serves up 11.8 inches (300 mm) of wheel travel. During testing, the setup absorbed everything from square-edged roots to high-speed whoops without deflecting or wallowing. At 37.8 inches (960 mm), the seat height might intimidate shorter riders, but the narrow chassis design helps mitigate this.

Braking Performance: Brembo’s twin-piston front caliper bites a 260mm disc (some sources list 220mm—verify specs), offering strong, predictable stopping power. The rear single-piston setup is equally refined, crucial for controlling slides on loose descents.

Handling and Ergonomics: Where Comfort Meets Control

Swinging a leg over the FX 350 reveals a cockpit designed for aggression. The handlebars are positioned for stand-up riding, and the footpegs sit low enough to maintain grip without dragging in ruts. At 14.6 inches (370 mm) of ground clearance, rocks and logs become minor inconveniences rather than obstacles.

On tight singletrack, the bike’s 100.6 kg (222 lbs) dry weight feels even lighter, thanks to centralized mass. The Michelin Enduro tires (90/90-21 front, 140/80-18 rear) provide tenacious grip, though serious mud riders might opt for more aggressive treads.

Fuel Range: The 2.25-gallon (8.5L) tank is adequate for 2-3 hours of hard riding, but adventure-minded riders should consider aftermarket solutions for longer loops.

Competition: How the FX 350 Stacks Up

KTM 350 EXC-F

The FX 350’s closest rival is its orange cousin, the KTM 350 EXC-F. Both share similar engines and WP suspension, but the Husqvarna edges ahead with a slightly smoother power delivery and more refined ergonomics. KTM riders often praise raw aggression, while Husqvarna loyalists prefer its finesse in technical terrain.

Yamaha WR250F

Yamaha’s WR250F is lighter (247 lbs wet) but down on power (38 HP). The WR excels in slow-speed trials but feels breathless compared to the Husqvarna’s 58 HP. For riders prioritizing low-weight over power, the Yamaha is tempting—but the FX 350 dominates in versatility.

Beta 350 RR

Beta’s 350 RR offers a plush suspension setup and a torquier low-end, ideal for rocky climbs. However, the Husqvarna’s chassis feels more precise during high-speed direction changes. Maintenance intervals also favor the FX 350, thanks to its robust lubrication system.

Verdict: The FX 350 sits in a sweet spot between motocross intensity and enduro endurance. It’s less specialized than pure race bikes but more capable than trail-focused models.

Maintenance: Keeping the Beast Alive

Critical Service Points

1. Air Filter Care: Frequent offroad use clogs filters fast. Clean every 10-15 hours using biodegradable solvents. Consider a pre-oiled Twin Air filter for quicker swaps.
2. Oil Changes: The dual Eaton pumps demand fresh lubricant. Replace engine oil every 15 hours (or 30 for casual riders). Use JASO MA2-certified 10W-50 oil.
3. Suspension Linkage: Grease the linkage bearings annually. Upgrading to sealed bearings reduces mud intrusion.
4. Valve Checks: With polished camshafts and DLC followers, valve adjustments are rare but necessary. Inspect every 50 hours.

MOTOPARTS.store Upgrades

• Skid Plates: Protect the engine from rock strikes with a reinforced aluminum guard.
• Handguards: Acerbis Rally Pro guards shield levers and hands in crashes.
• Seat Concepts Comfort Seat: Ideal for reducing fatigue during marathon rides.
• High-Capacity Fuel Tanks: Extend range with a 3.1-gallon IMS tank.

Conclusion: A Modern Classic

The 2017-2019 Husqvarna FX 350 isn’t just a motorcycle—it’s a passport to exploring limits. Whether you’re carving through enduro special tests or tackling weekend trail adventures, this machine rewards skill without punishing mistakes. While newer models have emerged, this generation remains a benchmark for balanced performance. At MOTOPARTS.store, we’re committed to keeping your FX 350 in peak condition, ensuring every ride feels as exhilarating as the first.

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Specifications sheet

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