Husqvarna FS 450 [2021-2022] Review: A Supermoto That Rewrites the Rules

Introduction

The Husqvarna FS 450 isn’t just a motorcycle—it’s a declaration of intent. Built for riders who demand razor-sharp precision and unapologetic performance, this supermoto bridges the gap between track weapon and street-legal thrill machine. As part of Husqvarna’s lineage of competition-bred machines, the 2021-2022 FS 450 iteration refines an already potent formula with subtle but impactful updates. Over two days of aggressive corner carving, hill climbs, and urban escapades, I discovered why this bike continues to dominate conversations in the supermoto world.

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Engine Performance: Contained Fury

At the heart of the FS 450 lies a 449.9cc liquid-cooled single-cylinder engine, producing 63 HP (46 kW)—a staggering figure for its lightweight 103 kg (227 lbs) dry weight. The bore and stroke (95 x 63.4 mm) prioritize explosive mid-range punch over low-end lethargy, making it feel like a caged animal eager to sprint.

The Keihin EMS and EFI system (note: conflicting data about carburettor vs. EFI exists, but 2021+ models use electronic fuel injection) deliver crisp throttle response. Paired with a Suter slipper clutch and Brembo hydraulics, downshifts are buttery smooth even when braking hard into hairpins. The 5-speed gearbox is short-ratio, demanding frequent shifts but rewarding riders with relentless acceleration.

Fuel economy? Expect 3.68 L/100 km (63.92 mpg) if you’re gentle—a laughable notion given how addictive the power delivery is. This engine isn’t about practicality; it’s about translating every drop of fuel into adrenaline.

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Chassis and Handling: Surgical Precision

The FS 450’s 25CrMo4 steel frame and aluminum subframe strike a balance between rigidity and flex. With a wheelbase of 1,482 mm (58.3 inches) and a 26.1° rake, it’s nimble enough to pivot on a dime yet stable at triple-digit speeds.

WP XACT suspension dominates both ends:
- 285 mm (11.2 in) front travel via 48mm inverted forks
- 266 mm (10.5 in) rear travel with linkage-assisted shock

Revised damping in 2021 reduces friction, letting the bike glide over potholes and curbs without unsettling the chassis. On tight asphalt circuits, the setup feels telepathic—lean angles border on absurd, aided by Bridgestone Battlax Supermoto tires (125/60-16.5 front, 165/65-17 rear).

Brembo brakes are equally superlative:
- 310 mm front disc with twin-piston caliper
- 220 mm rear disc with single-piston caliper

Stopping power is violent yet controllable, perfect for late-braking theatrics.

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Electronics: Smarter Than It Needs to Be

Supermotos thrive on simplicity, but Husqvarna’s included tech elevates the experience:
- 2 engine maps: "Rain" softens throttle response; "Race" unleashes full fury.
- Traction control: Discreet but effective, preventing rear-wheel mischief.
- Launch control: For dragstrip-style starts (not that you’d need it).

The Li-ion 2 Ah battery and electric start ensure reliability—no frantic kicking after a stall.

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Ergonomics: Built for Battle

At 890 mm (35 in), the seat height is intimidating for shorter riders but ideal for standing maneuvers. The Neken handlebar and ODI grips offer a commanding riding position, while the 7-liter (1.85 gal) fuel tank keeps weight centralized. After an hour in the saddle, your legs will protest, but that’s the trade-off for a 290 mm (11.4 in) ground clearance that shrugs off curbs and debris.

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Competition: How Does It Stack Up?

1. KTM 450 SMR

The FS 450’s sibling shares its engine and DNA but uses a steel subframe. Husqvarna’s carbon fiber subframe saves 1.5 kg (3.3 lbs), making it marginally nimbler. KTM counters with slightly better parts availability.

2. Honda CRF450R Supermoto

Honda’s offering is more affordable but heavier (110 kg / 242 lbs) and less powerful (58 HP). The CRF excels in durability but feels agricultural compared to the Husqvarna’s race-bred reflexes.

3. Yamaha YZ450FX

Yamaha’s rally-inspired model prioritizes off-road versatility. On pavement, its softer suspension and taller gearing can’t match the FS 450’s surgical precision.

Verdict: The Husqvarna dominates in weight savings, component quality, and track readiness. Its rivals cater to budgets or dual-sport flexibility—this bike is for purists.

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Maintenance: Keeping the Beast Alive

Owning an FS 450 means embracing its high-strung nature. Here’s how to keep it thriving:

1. Oil Changes

The engine’s 11.8:1 compression ratio demands frequent oil swaps—every 15 hours or 1,000 km (621 miles). Use MOTOPARTS.store’s 10W-50 synthetic oil for optimal protection.

2. Air Filter Service

Dust kills performance. Clean the filter every 10 hours with our no-rush foam filter kits.

3. Chain & Sprockets

The 5/8 x 1/4" chain stretches quickly under hard use. Our DID ERV3 chain sets reduce maintenance headaches.

4. Suspension Tuning

WP components need specialist care. Rebuild shocks every 50 hours using MOTOPARTS.store’s seal kits.

5. Brake Upgrades

Swap stock pads for Brembo Sintered Race pads when the originals fade.

6. Tyre Choices

The stock Bridgestones grip like glue but wear fast. Our Pirelli Diablo Supercorsa SC range offers longer life for street use.

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Conclusion: The Supermoto Standard

The Husqvarna FS 450 [2021-2022] isn’t just a motorcycle—it’s a masterclass in focused engineering. From its explosive engine to its race-derived chassis, every component serves a singular purpose: domination. While it’ll punish casual riders with its stiff ergonomics and demanding maintenance, those willing to master its quirks will find a machine that rewards like nothing else.

At MOTOPARTS.store, we’re here to ensure your FS 450 stays at peak performance. Whether you’re chasing lap records or urban glory, our curated selection of aftermarket parts guarantees you’ll never compromise.

Ride hard. Ride smart. Ride Husqvarna.

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Specifikacijų lentelė

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