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2018 Husqvarna FS 450 Overview
The 2018 Husqvarna FS 450 is a super motard motorcycle built around 449.30 cc of displacement. Under the tank sits a Single cylinder, four-stroke engine running Single Overhead Cams (SOHC) valve actuation. The bore and stroke measures 95 x 63.4 mm. From a practical standpoint, the 2018 FS 450 tips the scales at 110 kg, carries a 9.50-litre fuel tank, offers a seat height of 927 mm and spans a 1,475 mm wheelbase. Scroll down for the complete 2018 Husqvarna FS 450 spec sheet covering every technical detail from suspension travel to tyre sizes.
2018 FS 450 - Pros & Cons
Strengths
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Factory engineering: The 2018 Husqvarna FS 450 represents Husqvarna's engineering at the time, with a specification built around real-world usability.
Considerations
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Carburetor fuelling: Carbureted engines need occasional jetting attention and can be reluctant in cold weather or at altitude compared to modern fuel-injected alternatives.
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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.
Owner Experiences & Common Issues
Carburetor maintenance
Carburetors on the 2018 Husqvarna FS 450 benefit from a clean and re-jet if the bike has been stored, run on stale fuel, or modified with an aftermarket exhaust. Owners frequently mention that fresh jets and float needle clips transforms throttle response from flat to crisp.
Valve clearance checks
Single Overhead Cams (SOHC) engines should have valve clearances checked at the manufacturer's specified interval. Owners report that clearances can tighten over time on higher-mileage bikes, leading to slight ticking from the top end. Catching it early keeps the job simple and avoids more costly remediation.
FS 450 - Buying & Maintenance Guide
What to check before buying
When inspecting a used 2018 Husqvarna FS 450, 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 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. 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 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.
Valve clearance service
Check that valve clearances have been adjusted at the correct intervals on any used FS 450. This is a job many owners skip because the bike does not immediately feel wrong - but tight clearances accelerate valve seat wear. Ask for proof it has been done.
2018 Husqvarna FS 450 - Frequently Asked Questions
What engine does the 2018 Husqvarna FS 450 have?
The 2018 Husqvarna FS 450 uses a Single cylinder, four-stroke engine with 449.30 cc of displacement.
How much does the 2018 Husqvarna FS 450 weigh?
The 2018 Husqvarna FS 450 weighs 110 kg. This is the manufacturer's dry figure.
What is the fuel tank capacity of the 2018 Husqvarna FS 450?
The 2018 Husqvarna FS 450 has a 9.50-litre fuel tank.
Is the 2018 Husqvarna FS 450 suitable for shorter riders?
The 2018 Husqvarna FS 450 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 2018 Husqvarna FS 450 have?
The 2018 Husqvarna FS 450 uses Single disc. Brembo four-piston radial fixed calliper at the front and Single disc. Brembo single-piston floating calliper at the rear.
What tyre sizes does the 2018 Husqvarna FS 450 use?
The 2018 Husqvarna FS 450 runs 90/90-17 front and 140/90-17 rear tyres. A good selection of sport, touring and all-weather rubber is available in these sizes.
What fuel system does the 2018 Husqvarna FS 450 use?
The 2018 Husqvarna FS 450 uses Carburettor, providing precise fuelling across the rev range and reliable cold-start behaviour.
Husqvarna FS 450 Spec Evolution
The Husqvarna FS 450 was produced across 8 model years (2016-2023). 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 |
2016 |
2017 |
2018 |
2019 |
2020 |
2021 |
2022 |
2023 |
| Dry Weight |
110 kg / 242.5 lbs |
110 kg / 242.5 lbs |
110 kg / 242.5 lbs |
102.9 kg / 226.9 lbs |
102.8 kg / 226.6 lbs |
102.8 kg / 226.6 lbs |
103 kg / 227.1 lbs |
107.6 kg / 237.2 lbs |
| Seat Height |
927 mm / 36.5 in. |
927 mm / 36.5 in. |
927 mm / 36.5 in. |
890 mm / 35.0 in. |
890 mm / 35.0 in. |
890 mm / 35.0 in. |
890 mm / 35.0 in. |
898 mm / 35.4 in. |
| Fuel Capacity |
9.50 litres / 2.51 gallons |
9.50 litres / 2.51 gallons |
9.50 litres / 2.51 gallons |
9.50 litres / 2.51 US 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) |
290 mm |
290 mm |
290 mm |
290 mm |
290 mm |
290 mm |
290 mm |
281 mm |
| Ground Clearance (in.) |
11.4 inches |
11.4 inches |
11.4 inches |
11.4 inches |
11.4 inches |
11.4 inches |
11.4 inches |
11.1 inches |
| Displacement (ci) |
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 |
27.45 cubic inches |
| Displacement (cc) |
449.30 cc |
449.30 cc |
449.30 cc |
449.9 cc |
449.9 cc |
449.9 cc |
449.9 cc |
449.9 cc |
| Comments |
- |
- |
- |
- |
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2 engine maps. |
Traction control, 2 engine maps. |
Key Specifications
Engine
Single cylinder, four-stroke
Weight
110 kg / 242.5 lbs
Fuel Capacity
9.50 litres / 2.51 gallons
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Full 2018 Husqvarna FS 450 Specifications
Colours
Blue/yellow/white
Warranty
2 Years
Ground Clearance (in.)
11.4 inches
Ground Clearance (mm)
290 mm
Seat Height
927 mm / 36.5 in.
Wheelbase
1,475 mm / 58.1 in.
Length
2,260 mm / 89.0 in.
Dry Weight
110 kg / 242.5 lbs
Fuel Capacity
9.50 litres / 2.51 gallons
Bore x Stroke (in,)
3.7 x 2.5 inches
Bore x Stroke (mm)
95.0 x 63.4 mm
Displacement (cc)
449.30 cc
Displacement (ci)
27.42 cubic inches
Engine Type
Single cylinder, four-stroke
Fuel Control
Single Overhead Cams (SOHC)
Fuel System
Carburettor
Ignition
Keihin EMS
Starter
Electric
Clutch
APTC(TM) slipper clutch, hydraulically actuated
Final Drive
Chain
Gearbox
6-speed
Primary Drive
5/8 x 1/4 in. chain
Frame Type
Chrome-molybdenum steel tubular space frame, powder-coated
Suspension - Front
WP-USD, AER 48, ? 48 mm
Suspension - Rear
WP shock absorber with linkage
Rake
26.5°
Wheel Travel - Front
285 mm / 11.2 in.
Wheel Travel - Rear
266 mm / 10.5 in.
Brakes - Front Diameter (in.)
12.2 inches
Brakes - Front Diameter (mm)
310 mm
Brakes - Rear Diameter (in.)
10.5 inches
Brakes - Rear Diameter (mm)
266 mm
Brakes - Front
Single disc. Brembo four-piston radial fixed calliper
Brakes - Rear
Single disc. Brembo single-piston floating calliper
Tyres - Front
90/90-17
Tyres - Rear
140/90-17
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