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2023 Husqvarna FC450 Overview
Husqvarna FC450 is a cross / motocross motorcycle, displacing 449.9 cc. Power comes from a Single cylinder, four-stroke engine running Single Overhead Cams (SOHC) valve actuation. Bore and stroke come in at 95 x 63.4 mm. On the road, the 2023 FC450 tips the scales at 102.8 kg, carries a 7.20-litre fuel tank, offers a seat height of 939 mm and spans a 1485 mm wheelbase. The full 2023 Husqvarna FC450 spec sheet below covers every technical detail, from suspension travel to tyre sizes.
2023 Husqvarna FC450 compared with other bikes in the Cross / motocross category
We checked the recorded figures for the 2023 Husqvarna FC450 against up to 224 bikes in the Cross / motocross category in our database, counting each model once at the model year nearest to this one.
- Only 26 of the other 223 bikes in the Cross / motocross category have a larger engine displacement than the 450 cc of the FC450.
- With 939 mm, the FC450 has the joint 90th tallest seat height of 200 bikes in the Cross / motocross category, 4% above the category average of 900 mm.
- Narrowing the field to the 87 models within five model years of it, the engine displacement of 450 cc is larger than that of 81 of the other 86.
Versus the 2022 model
The figures we track are unchanged from the 2022 model: displacement and seat height all match.
2023 FC450 - Pros & Cons
Strengths
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Strong front braking: Stopping power up front is strong thanks to the single disc setup, with plenty of room to upgrade further with braided lines.
Considerations
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Carburetor fuelling: Expect to spend more time keeping the carbs in tune, especially after long storage periods or a change in altitude.
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Tall seat height: At 939 mm, shorter riders will likely be on tiptoes at a standstill - worth sitting on one before you buy.
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Modest fuel capacity: Range between stops is limited by the 7.20-litre tank - plan fuel stops accordingly on longer routes.
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Chain final drive upkeep: Budget time for routine chain maintenance - it's cheap to replace but needs consistent attention to avoid premature sprocket wear.
Wear Points & Servicing Notes
Carburetor maintenance
Carburetors on the FC450 need periodic attention - pilot jets and float needles are the first parts to gum up after the bike sits, and the first thing to check if idle or throttle response degrades.
Valve clearance checks
With Single Overhead Cams (SOHC) valve gear, the FC450 needs periodic clearance checks; caught early they're a cheap adjustment, left unchecked they accelerate valve seat wear.
Brake disc and pad wear
Braking up front comes from single disc with Brembo twin-piston floating calliper - solid stopping power, with disc and pad wear best checked on the same schedule as tyre changes.
Suspension condition on used examples
The FC450's suspension runs WP XACT-USD, Ø 48 mm at the front. The rear uses WP XACT Monoshock with linkage. Fork-seal condition and rear linkage play are the two things worth checking before buying used.
Final drive maintenance
The FC450 uses chain final drive, which is cheap to replace but needs regular cleaning, lubrication and tension checks to get a full service life out of the sprockets.
Frame & chassis check
Built around a Central double-cradle-type 25CrMo4 steel, the FC450's chassis is straightforward to inspect: look for corrosion, cracks or repair welds around stress points like the head-stock and swingarm mounts.
Low-speed handling
102.8 kg keeps the FC450 easy to move around in tight spaces, car parks and on the stand alike.
FC450 - Buying & Maintenance Guide
What to check before buying
Before handing over money for a used 2023 Husqvarna FC450 with its 449.9 cc cross / motocross, cover the fundamentals: service book and oil change history, drivetrain wear, and any sign of oil weeping around the casings. This model runs chain final drive, so check chain slack and sprocket tooth profile specifically - a worn sprocket is a cheaper fix now than after it's chewed up the next chain. Now 3 years old, this cross / motocross is as likely to show age-related wear (perished rubber, seized fasteners, degraded seals) as mileage-related wear. Cold-starting it yourself tells you a lot - a healthy FC450 should catch quickly and settle into a smooth idle.
Oil and filter changes
Nothing protects the FC450's 449.9 cc single cylinder, four-stroke like disciplined oil changes - stay on the manufacturer's schedule (roughly every 6,000 km or annually). Match the viscosity grade to what the owner's manual specifies, not what's cheapest.
Carburetor upkeep
Deposits in the carbs are the usual culprit behind poor running on a stored FC450 - strip and clean the float bowls before the first start. Pilot jets clog first and get overlooked most, so make a point of checking them.
Valve clearance service
Valve clearances are easy to overlook on a used FC450 since a bike out of spec doesn't always feel obviously wrong - but the wear it causes is real. Ask the seller for documentation before assuming it's been done.
2023 Husqvarna FC450 - Frequently Asked Questions
What engine does the 2023 Husqvarna FC450 have?
The 2023 Husqvarna FC450 uses a Single cylinder, four-stroke engine with 449.9 cc of displacement.
How much does the 2023 Husqvarna FC450 weigh?
The 2023 Husqvarna FC450 weighs 102.8 kg. This is the manufacturer's dry figure.
What is the fuel tank capacity of the 2023 Husqvarna FC450?
The 2023 Husqvarna FC450 has a 7.20-litre fuel tank. At around 5-6 litres per 100 km, that is roughly 120-144 km between stops.
Is the 2023 Husqvarna FC450 suitable for shorter riders?
The 2023 Husqvarna FC450 has a seat height of 939 mm. This is towards the tall end of the spectrum and will require most riders under 175 cm to tiptoe at stops.
What brakes does the 2023 Husqvarna FC450 have?
The 2023 Husqvarna FC450 uses single disc with Brembo twin-piston floating calliper at the front and single disc with Brembo single-piston floating calliper at the rear.
What tyre sizes does the 2023 Husqvarna FC450 use?
The front tyre size on the 2023 Husqvarna FC450 is 90/90-21.
What fuel system does the 2023 Husqvarna FC450 use?
The 2023 Husqvarna FC450 uses Carburettor. 44mm Keihin, providing precise fuelling across the rev range and reliable cold-start behaviour.
Husqvarna FC450 Spec Evolution
The Husqvarna FC450 was produced across 8 model years (2014-2023). The table below highlights the key specifications that changed across the production run - useful whether you are comparing years or tracking down a specific variant.
| Specification |
2014 |
2016 |
2017 |
2018 |
2019 |
2021 |
2022 |
2023 |
| Dry Weight |
107.6 kg / 237.2 lbs |
102.4 kg / 225.8 lbs |
101.2 kg / 223.1 lbs |
101.2 kg / 223.1 lbs |
101 kg / 222.7 lbs |
101 kg / 222.7 lbs |
101 kg / 222.7 lbs |
102.8 kg / 226.6 lbs |
| Seat Height |
992 mm / 39.1 in. |
960 mm / 37.8 in. |
960 mm / 37.8 in. |
960 mm / 37.8 in. |
950 mm / 37.4 in. |
940 mm / 37.0 in. |
940 mm / 37.0 in. |
939 mm / 37.0 in. |
| Fuel Capacity |
7.50 litres / 1.98 gallons |
7.00 litres / 1.85 gallons |
7.00 litres / 1.85 gallons |
7.00 litres / 1.85 gallons |
7.00 litres / 1.85 US gallons |
7.00 litres / 1.85 US gallons |
7.00 litres / 1.85 US gallons |
7.20 litres / 1.90 US gallons |
| Ground Clearance (mm) |
371 mm |
370 mm |
370 mm |
370 mm |
370 mm |
370 mm |
370 mm |
336 mm |
| Ground Clearance (in.) |
14.6 inches |
14.6 inches |
14.6 inches |
14.6 inches |
14.6 inches |
14.6 inches |
14.6 inches |
13.2 inches |
| Fuel Control |
DOHC |
Double Overhead Cams/Twin Cam (DOHC) |
Single Overhead Cams (SOHC) |
Single Overhead Cams (SOHC) |
Single Overhead Cams (SOHC) |
Single Overhead Cams (SOHC) |
Single Overhead Cams (SOHC) |
Single Overhead Cams (SOHC) |
| Displacement (ci) |
27.42 cubic inches |
27.42 cubic inches |
27.42 cubic inches |
27.42 cubic inches |
27.45 cubic inches |
27.45 cubic inches |
27.45 cubic inches |
27.45 cubic inches |
| Displacement (cc) |
449.30 cc |
449.30 cc |
449.30 cc |
449.30 cc |
449.9 cc |
449.9 cc |
449.9 cc |
449.9 cc |
Key Specifications
Engine
Single cylinder, four-stroke
Weight
102.8 kg / 226.6 lbs
Fuel Capacity
7.20 litres / 1.90 US gallons
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Full 2023 Husqvarna FC450 Specifications
Comments
Traction control. Two engine maps.
Colours
White/yellow/grey
Ground Clearance (in.)
13.2 inches
Ground Clearance (mm)
336 mm
Seat Height
939 mm / 37.0 in.
Wheelbase
1485 mm / 58.5 in.
Dry Weight
102.8 kg / 226.6 lbs
Fuel Capacity
7.20 litres / 1.90 US gallons
Bore x Stroke (in,)
3.7 x 2.5 inches
Bore x Stroke (mm)
95.0 x 63.4 mm
Displacement (cc)
449.9 cc
Displacement (ci)
27.45 cubic inches
Engine Type
Single cylinder, four-stroke
Fuel Control
Single Overhead Cams (SOHC)
Stroke
4-stroke
Fuel System
Carburettor. 44mm Keihin
Ignition
Keihin EMS
Starter
Electric
Clutch
Wet, DDS multi-disc clutch, Brembo hydraulics
Final Drive
Chain (final drive)
Gearbox
5-speed
Primary Drive
5/8 x 1/4´ chain
Frame Type
Central double-cradle-type 25CrMo4 steel
Suspension - Front
WP XACT-USD, Ø 48 mm
Suspension - Rear
WP XACT Monoshock with linkage
Rake
26.1°
Wheel Travel - Front
305 mm / 12.0 in.
Wheel Travel - Rear
293 mm / 11.5 in.
Brakes - Front
Single disc. Brembo twin-piston floating calliper
Brakes - Rear
Single disc. Brembo single-piston floating calliper
Rims
Alloy rims by D.I.D. DUNLOP MX33 tyres.
Tyres - Front
90/90-21
Specifications are compiled from manufacturer documentation and cross-referenced
technical sources, and corrected on an ongoing basis.
Spot an error? Let us know.
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