2021 Motorcycle Previews 2021 Husqvarna 4-Stroke Motocross Lineup First Look: 5 Fast Facts

2021 Husqvarna 4-Stroke Motocross Lineup First Look: 5 Fast Facts

Husqvarna is offering three four-stroke motocrossers for 2021—the FC 450, FC 350, and FC 250. The three models share the same chassis, with the FC 450 having a SOHC motor that is distinct from the DOHC powerplant used on the FC 350 and FC 250. Most of the changes for ’21 are chassis related, so let’s go over what’s new.

  1. The WP Xact fork gets a makeover for 2021. The outer tubes and fork damping cartridges are 10mm shorter, which adds rigidity. There is also a new mid-valve damping system on the air-spring Xact fork, with the goal of softer performance on landing from big air due to reducing pressure peaks in the internals.

2021 Husqvarna 4-stroke motocross lineup first look - FC 450
2021 Husqvarna FC 450

  1. New low-friction linkage seals allow the WP Xact shock to have a smoother feel. As with the fork, the WP shock gets new settings to reflect the other changes to the suspension.

2021 Husqvarna 4-stroke motocross lineup - FC 350
2021 Husqvarna FC 350 

  1. The seat cover is grippier this year. 
  1. There are new airbox side panels. They are designed to increase airflow into the airbox, allowing the four-stroke motors to have a more aggressive throttle response. The airbox lid is still swappable, so you can tailor the throttle response to taste.

2021 Husqvarna 4-stroke motocross lineup - FC 250
2021 Husqvarna FC 250

  1. The latest electric yellow and dark blue graphics for the 2021 Husqvarna 4-stroke motocross lineup celebrate the company’s Swedish heritage. 

2021 Husqvarna FC 450 (FC 350 and FC 250) Specs


  • Type: Single-cylinder four-stroke
  • Displacement: 450cc  (FC 350: 350cc; FC 250: 250cc)
  • Bore x stroke: 95 x 63.4mm (FC 350: 88 x 57.5mm; FC 250: 78 x 52.3mm)
  • Compression ratio: 12.75:1 (FC 350: 14.0:1; FC 250: 14.4:1)
  • Valvetrain: SOHC, 4 valves (FC 350 and FC 250: DOHC, 4 valves)
  • Starting: Electric w/ Lithium-ion 12.8-volt 2 Ah battery
  • Fueling: Keihin EFI w/ 44mm throttle body
  • Transmission: 5-speed
  • Clutch: Wet multi-disc DDS clutch w/ Brembo hydraulics
  • Final drive: 5/8” x ¼” chain


  • Frame: Central double-cradle chromoly steel
  • Subframe: Carbon-reinforced polyamide
  • Handlebar: ProTaper aluminum
  • Front suspension: Fully adjustable WP Xact inverted 48mm fork; 12.2 inches
  • Rear suspension: Linkage-assisted fully adjustable WP Xact shock; 11.8 inches
  • Wheels: D.I.D
  • Front wheel: 21 x 1.60
  • Rear wheel: 19 x 2.15
  • Tires: Dunlop Geomax MX33
  • Front tire: 80/100 x 21
  • Rear tire: 120/90 x 19 (FC 350 and FC 250: 110/90 x 19)
  • Front brake: 260mm disc w/ Brembo caliper
  • Rear brake: 220mm disc w/ Brembo caliper


  • Wheelbase: 58.5 inches (± 0.4 in)
  • Rake: 26.1 degrees
  • Triple clamp offset: 22mm
  • Seat height: 37 degrees
  • Ground clearance: 14.6 inches
  • Fuel capacity: 1.85 gallons
  • Curb weight: 233 pounds (FC 350: 232 pounds; FC 250: 230 pounds)

2021 Husqvarna 4-Stroke Motocross Lineup Photo Gallery

Don Williams
Don Williamshttp://www.ultimatemotorcycling.com
With 50 years of riding experience, Don Williams is a fan of all kinds of motorcycles. He enjoys sport bikes, cruisers, dirt bikes, touring bikes, adventure bikes, dual sport bikes, and rideable customs. Ask Don what his favorite bike is and he will tell you, "Whatever bike I'm on."

Honda, KTM, Piaggio, and Yamaha Sign E-Motorcycle Battery Agreement

Get ready for the Swappable Batteries Consortium for Motorcycles and Light Electric Vehicles made up of Honda, KTM, Piaggio, and Yamaha. The goal is...

Laurin & Klement Slavia B – The Birth of Škoda Motorsports 120 Years Ago

Czechs Václav Laurin and Václav Klement founded their bicycle manufacturing company in Mladá Boleslav, Bohemia, in 1895. The company, Laurin & Klement, started a...

2021 Daytona Fantasy Supercross Tips (16 Fast Facts)

The Daytona Supercross is the midway point in the 2021 Monster Energy Supercross Championship Series. There are eight rounds in the book, and there...

BMW Motorrad International GS Trophy Comes To Europe For 2022

For the first time since its 2008 debut, the BMW Motorrad International GS Trophy competition will be held in Europe. Located above the northeast...

Ultimate Motorcycling Editor’s Letter, March 2021: Vive l’automatique!

Testing the 2021 Honda Rebel 1100 DCT for this issue reminded me of something fundamental—motorcycles need to be accessible to new riders. Although we’ve...

Lieback’s Lounge: FTR—The Savior From Winter Misery?

When I found myself cleaning the tire treads on my Multistrada 1200, I knew the winter madness had returned.