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2020 Husqvarna FS 450 Supermoto Overview
The 2020 Husqvarna FS 450 Supermoto is a super motard motorcycle built around 449 cc of displacement. Under the tank sits a Four stroke, single cylinder, DOHC, 4 vlave engine. From a practical standpoint, the 2020 FS 450 Supermoto tips the scales at 110 kg, carries a 9.5-litre fuel tank, offers a seat height of 927 mm and spans a 1475 ± 10 mm wheelbase. That's roughly 100.5 kg lighter than the average super motard motorcycle in our database. Scroll down for the complete 2020 Husqvarna FS 450 Supermoto spec sheet covering every technical detail from suspension travel to tyre sizes.
2020 FS 450 Supermoto - Pros & Cons
Strengths
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Factory engineering: The 2020 Husqvarna FS 450 Supermoto represents Husqvarna's engineering at the time, with a specification built around real-world usability.
Considerations
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Tall seat height: The 927 mm seat height will challenge shorter riders - tiptoeing at low speeds is something to factor into your decision.
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Modest fuel capacity: The 9.5-litre tank means more frequent fuel stops on longer rides, which is worth planning around on touring routes.
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Chain final drive upkeep: Chain final drive needs regular cleaning, lubrication and tension checks to get full life out of the sprockets.
Wear Points & Servicing Notes
Cooling system servicing
The Liquid cooled system on the FS 450 Supermoto needs a coolant change roughly every two years (or per the service schedule) - skipping it lets the coolant turn acidic and corrode the aluminium water passages over time.
Brake disc and pad wear
The Single 320mm disc Brembo front brake gives strong, progressive stopping power. Disc thickness and pad depth are worth checking at every tyre change, since worn pads can score the disc surface.
Suspension condition on used examples
Up front, the FS 450 Supermoto runs WP-USD, AER 48, ø 48 mm and WP shock absorber with linkage at the rear. On a used example, check fork seals for weeping oil and test the rear linkage for play - seals are a relatively cheap fix but useful when negotiating price.
Final drive maintenance
Final drive is by chain - expect to clean and lube it every few hundred kilometres and check tension regularly; a neglected chain wears the sprockets faster than the chain itself.
Frame & chassis check
The frame is Design Chrome-molybdenum steel tubular space frame, powder-coated - worth a visual check for corrosion or impact damage around the head-stock and swingarm pivot on any used example, since frame damage is far costlier to fix than any service item.
Low-speed handling
At just 110 kg, the FS 450 Supermoto is light enough to manhandle easily at a standstill - one of the practical advantages of its class.
FS 450 Supermoto - Buying & Maintenance Guide
What to check before buying
When inspecting a used 2020 Husqvarna FS 450 Supermoto, start with the basics: check the service book for oil change frequency, inspect the chain and sprockets for wear, and look for oil seepage around the engine casings and rocker covers. A cold start test is invaluable - a well-maintained FS 450 Supermoto should fire up cleanly and settle to a smooth idle within a few seconds.
Oil and filter changes
Regular oil changes are the single most important maintenance task on any FS 450 Supermoto. Stick to the manufacturer's interval - typically every 6,000 km or once a year, whichever comes first. Always use the correct viscosity grade as specified in the owner's manual.
Carburetor upkeep
Keep the carburetors clean and free of deposits. If the FS 450 Supermoto has been stored, strip and clean the carb float bowls before attempting to start it. Pilot jets are the first to block and the last to be checked - always include them in any carb rebuild.
2020 Husqvarna FS 450 Supermoto - Frequently Asked Questions
What engine does the 2020 Husqvarna FS 450 Supermoto have?
The 2020 Husqvarna FS 450 Supermoto uses a Four stroke, single cylinder, DOHC, 4 vlave engine with 449 cc of displacement. It is liquid cooled.
How much does the 2020 Husqvarna FS 450 Supermoto weigh?
The 2020 Husqvarna FS 450 Supermoto weighs 110 kg. This is the manufacturer's dry figure.
What is the fuel tank capacity of the 2020 Husqvarna FS 450 Supermoto?
The 2020 Husqvarna FS 450 Supermoto has a 9.5-litre fuel tank. At around 5-6 litres per 100 km, that is roughly 158-190 km between stops.
Is the 2020 Husqvarna FS 450 Supermoto suitable for shorter riders?
The 2020 Husqvarna FS 450 Supermoto has a seat height of 927 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 2020 Husqvarna FS 450 Supermoto have?
The 2020 Husqvarna FS 450 Supermoto uses Single 320mm disc Brembo at the front and Single 220mm disc, Brembo at the rear.
What tyre sizes does the 2020 Husqvarna FS 450 Supermoto use?
The 2020 Husqvarna FS 450 Supermoto runs 120/70 -17 front and 150/60 -17 rear tyres. A good selection of sport, touring and all-weather rubber is available in these sizes.
What gearbox does the 2020 Husqvarna FS 450 Supermoto have?
The 2020 Husqvarna FS 450 Supermoto is fitted with a 5 Speed transmission.
Husqvarna FS 450 Supermoto Spec Evolution
The Husqvarna FS 450 Supermoto was produced across 4 model years (2018-2023). 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 |
2018 |
2020 |
2021 |
2023 |
| Dry Weight |
110 kg / 242.5 lbs |
110 kg / 242.5 lbs |
102.5 kg / 226 lbs |
107.6 kg / 237.2 lbs |
| Engine Detail |
Four stroke, single cylinder, DOHC, 4 vlave |
Four stroke, single cylinder, DOHC, 4 vlave |
Four stroke, single cylinder, SOHC, 4 valve |
Four stroke, single cylinder, SOHC, 4 valve |
| Seat Height |
927 mm / 36.4 in |
927 mm / 36.4 in |
890 mm / 35 in |
898 mm / 35.3 in |
| Fuel Capacity |
9.5 Litres / 2.5 US gal |
9.5 Litres / 2.5 US gal |
7 Litres / 1.85 US gal |
7.2 Litres / 1.9 US gal |
| Frame Type |
Design Chrome-molybdenum steel tubular space frame, powder-coated |
Design Chrome-molybdenum steel tubular space frame, powder-coated |
Central double-cradle, chromoly steel with aluminum subframe |
25CrMo4 steel central-tube frame |
| Displacement |
449 cc / 27.4 cu-in |
449 cc / 27.4 cu-in |
449.9 cc / 27.4 cu-in |
449.9 cc / 27.4 cu-in |
| Wheelbase |
1475 ± 10 mm / 58.0 in |
1475 ± 10 mm / 58.0 in |
1468 mm ± 10 mm / 57.8 ± 0.4 in |
1468 mm ± 10 mm / 57.8 ± 0.4 in |
| Brakes - Front |
Single 320mm disc Brembo |
Single 320mm disc Brembo |
Single 310 mm disc with Brembo hydraulics |
Single 310 mm disc with Brembo hydraulics |
Key Specifications
Engine
Four stroke, single cylinder, DOHC, 4 vlave
Power
Not published by manufacturer
Torque
Not published by manufacturer
Top Speed
Not published by manufacturer
Weight
110 kg / 242.5 lbs
Fuel Capacity
9.5 Litres / 2.5 US gal
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Full 2020 Husqvarna FS 450 Supermoto Specifications
Year
2019 - 20
Make Model
Husqvarna FS 450 Supermoto
Seat Height
927 mm / 36.4 in
Wheelbase
1475 ± 10 mm / 58.0 in
Ground Clearance
290 mm/ 11.4 in
Dry Weight
110 kg / 242.5 lbs
Fuel Capacity
9.5 Litres / 2.5 US gal
Displacement
449 cc / 27.4 cu-in
Engine Detail
Four stroke, single cylinder, DOHC, 4 vlave
Bore x Stroke
95 X 63.4 mm
Cooling System
Liquid cooled
Fuel Induction
EMS Keihin EMS
Ignition
Digital CDI
Lubrication
Dry sump with two oil pump rotor and cartridge filter
Starter
Electric
Clutch
APTC(TM) slipper clutch, hydraulically actuated
Final Drive
Chain 5/8 x 1/4"
Primary Drive
31:76
Secondary Drive Ratio
14:45
Transmission / Drive
5 Speed
Frame Type
Design Chrome-molybdenum steel tubular space frame, powder-coated
Suspension - Front
WP-USD, AER 48, ø 48 mm
Suspension - Rear
WP shock absorber with linkage
Wheel Travel - Front
285 mm / 11.2 in
Wheel Travel - Rear
266 mm / 10.4 in
Brakes - Front
Single 320mm disc Brembo
Brakes - Rear
Single 220mm disc, Brembo
Tyres - Front
120/70 -17
Tyres - Rear
150/60 -17
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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