Husqvarna FS 450 - 2021 Specifications and Reviews

The 2021 Husqvarna FS 450 is a lightweight supermoto built for aggressive street and track riders seeking nimble handling and playful performance. Powered by a 450cc single-cylinder four-stroke producing 63 horsepower, it excels at quick direction changes and wheelies while remaining manageable and fun-focused. Known for its sharp chassis geometry and responsive carbureted engine, the FS 450 delivers pure supermoto character.

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General information

CategorySuper motard
Year2021
ModelHusqvarna FS 450

Engine and Transmission Specifications

Driveline5/8 x 1/4 in. chain
ClutchSuter slipper clutch, Magura Hydraulics
Transmission typeChain   (final drive)
Gearbox5-speed
Cooling systemLiquid
IgnitionKeihin EMS
Fuel controlSingle Overhead Cams (SOHC)
Fuel systemCarburettor
Bore x Stroke95.0 x 63.4 mm (3.7 x 2.5 inches)
Power63.0 HP (46.0 kW)
Engine typeSingle cylinder, four-stroke
Capacity:449.9 ccm (27.45 cubic inches)
 
 

Brakes, suspension, Frame and wheels

Rear brakesSingle disc. Brembo single-piston floating calliper
Diameter310 mm (12.2 inches)
Front brakesSingle disc. Brembo four-piston radial fixed calliper
Rear tire140/90-17
Front tire90/90-17
Rear wheel travel266 mm (10.5 inches)
Rear SuspensionWP XACT Monoshock with linkage
Front wheel travel285 mm (11.2 inches)
Front SuspensionWP XACT-USD, Ø 48 mm
Rake (fork angle)26.1°
Frame typeCentral double-cradle-type 25CrMo4 steel
 
 

Physical measures and capacities

Fuel capacity7.00 litres (1.85 US gallons)
Wheelbase1475 mm (58.1 inches)
Ground clearance290 mm (11.4 inches)
Overall length2260 mm (89.0 inches)
Seat height890 mm (35.0 inches) If adjustable, lowest setting.
Power/weight ratio0.6128 HP/kg
Dry weight102.8 kg (226.6 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
ElectricalLightweight Li-Ion 2.0 Ah battery
StarterElectric
Color optionsBlue/white/yellow

Performance Profile & Rider Fit

63 hp
Peak Power
3.6s
0-60 mph

Best For

Track90%
City70%
Cornering97%
Daily Riding40%
Touring15%
Passenger15%

Rider Profile

Best ForThis bike suits experienced riders who are comfortable with a light, punchy, high-strung single-cylinder machine that demands active input.
PurposeBuilt as a supermoto, it excels at flickable, aggressive cornering on tight tarmac roads and track days rather than covering long distances.
Rider FitIts tall seat height and minimal, firm suspension travel favor taller riders with good fitness and confidence standing or shifting weight actively.
CharacterIt rewards a playful, aggressive riding style with sharp throttle response, strong brakes, and razor-quick handling at the expense of outright comfort.
Not Ideal ForThis is not the right choice for riders seeking a plush, stable long-distance tourer or a relaxed, low-maintenance daily commuter.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2021 Husqvarna FS 450 Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 890mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2021 Husqvarna FS 450, with a relaxed knee angle of around 145 degrees and a forward-leaning riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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Rider Reviews

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MotorcycleDB Review

The 2021 Husqvarna FS 450 is a top-of-the-line supermoto motorcycle that offers unmatched performance and handling. With its powerful 450cc engine, lightweight frame, and advanced suspension system, this bike is perfect for both professional racing and everyday riding. The sleek and aggressive design of the FS 450 makes it stand out on the track, while its precise and responsive controls provide riders with the ultimate riding experience. Whether you're hitting the hairpin turns or cruising down the highway, the 2021 Husqvarna FS 450 is sure to impress with its speed and agility. Overall, the 2021 Husqvarna FS 450 is a game-changer in the world of supermoto motorcycles. Its combination of power, precision, and style make it a must-have for any rider looking for the best in performance and design. With its advanced engineering and top-of-the-line features, the FS 450 is a standout choice for anyone who wants to experience the thrill of riding at the highest level.
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