FIRST LOOK! 2022 HUSQVARNA FC450 ROCKSTAR EDITION

The new Rockstar Edition bikes from Husqvarna have been officially introduced. The FC450 will be available in February 2022 (in the United States only).

Press release: Husqvarna Motorcycles introduces the 2022 FC 450 Rockstar Edition models. All-new engines and chassis keep competitive motocross riders ahead of their rivals, race after race. Class-leading, dynamic performance delivers instant power, while advanced ergonomics provide complete control.

The FC450 Rockstar Edition has an SOHC unit, also delivering class-leading performance. Both engines are all-new, lightweight and are repositioned in their frames for optimal mass-centralization, guaranteeing easy handling and control.

First Look! at the 2022 1/2 Husky FC250 Factory Edition.

The FC450 Rockstar Edition also have completely revised chassis for 2022. Both bikes feature a new hydro-formed chromium molybdenum frame designed for improved anti-squat behavior under power. A new die-cast aluminum swingarm provides optimal rigidity with low weight. A durable, aluminum-polyamide hybrid subframe is designed for specifically calculated rigidity.

Suspension is by WP. New XACT 48mm front forks with AER technology provide more progressive damping at the end of their stroke, while the latest XACT rear shock design features tool-free adjustment.

A new, multifunctional map switch selects power delivery modes. It also activates traction and launch control features, and an Easy Shift for seamless upshifts of the revised-ratio five-speed gearboxes in both the FC250 Rockstar Edition and FC450 Rockstar Edition.

New bodywork, adorned with the latest Rockstar Energy Husqvarna Factory Racing graphics, has tailored ergonomics for ease of movement on the motorcycle. This gives riders greater control to focus on racing.

The FC250 Rockstar Edition and FC450 Rockstar Edition replicate the Rockstar Energy Husqvarna Factory Racing bikes competing in AMA Supercross, and offer competitive machinery to all motocross racers.

FC450 ROCKSTAR EDITION FEATURES AND BENEFITS

Engine

The FC450 Rockstar Edition’s SOHC engine is the perfect example of the advanced engineering techniques used by Husqvarna Motorcycles, offering massive peak power with an overall weight of just 59 pounds (26.8 kg), equaling a weight reduction of approximately 300 grams compared to the previous generation.

Mass centralization is key to the engine design, enabling chassis engineers to position the engine closer to the center of gravity for greatly improved handling and maneuverability. This was achieved by tilting the engine 2° backwards which meant positioning the sprocket 3 mm lower. Together with the benefits of mass centralization and reduced weight, the anti-squat behavior of the chassis was significantly improved.

Attention was paid to the serviceability of the new FC450 Rockstar Edition engine. Drain bosses for fluids and added service markers on the engine (▲) clearly show where to use washers, making maintenance and service easier than before.

• Engine tilted 2° backwards with repositioned sprocket (3mm lower) → improved mass centralization and improved anti-squat behavior
• Peak performance and minimal weight → added midrange and improved handling
• Improved serviceability of engine internals → added service markers and drain bosses for liquids

Cylinder head

The redesigned SOHC cylinder head is incredibly compact and lightweight, with a short profile and the camshaft located as close to the center of gravity as possible. Parallel frame mounts significantly improve handling and agility.

Lightweight valves are actuated via a rocker arm and feature timing specifically designed to deliver precise levels of torque and throttle response. The diameter of the intake valves is 40 mm, while at the exhaust it is 33mm. A new valve cover reduces the number of mounting screws (only two needed) and a single oil-spray jet guarantees efficient cooling while keeping weight low.

A new fine punched cam chain, low-friction chain guides and the low-friction DLC rocker arm coating offers optimum efficiency, reliability, and durability. Attention was paid to maintenance tasks with lock positions for the cam chain to improve the serviceability of the valve train.

• Redesigned SOHC cylinder head → more compact design, parallel frame mounts and camshaft closer to center of gravity
• New lightweight valve cover → only two mounting screws and one oil-spray jet for cooling
• New fine punched cam chain adding durability
• DLC coating and low-friction chain guides → optimum efficiency, reliability, and durability
• Improved serviceability of valve train → lock positions for cam chain

Cylinder and piston

The lightweight aluminum cylinder is an engineering masterpiece, featuring a 95mm bore. The CP bridged-box-type piston features anodized annular grooves, adding durability and longer service intervals while weighing only 327g. The compression ratio has been increased to 13.1:1 for improved peak performance.

• Lightweight aluminum cylinder → 95mm bore / 63.4mm stroke
• Lightweight, high-performance CP forged bridged-box-type piston → reduced oscillating masses
• Increased compression to 13.1:1 → improved peak performance
• Anodized annular groove → added durability and longer service intervals

Crankshaft

The inertia produced by the crankshaft has been carefully calculated to deliver optimal traction and ride-ability from the powerful 450cc engine. The crankshaft is specifically positioned to harness the rotational mass at the ideal center of gravity resulting in a lightweight, agile-handling feel. A plain big-end bearing comprising of two force-fitted bearing shells ensure maximum reliability and durability, guaranteeing long service intervals of 100 hours.

• Crankshaft position → ideal center of gravity, improved handling
• Plain big-end bearing and force-fitted bearing shells → increased durability and service intervals

Crankcases

The crankcases are designed to arrange the shafts and engine internals in the ideal positions to offer the best-possible handling. Additionally, the position of the clutch shaft keeps the clutch above the oil level resulting in decreased drag and increased efficiency. A new steel oil pump gear and repositioned oil jets increase the overall oil pressure, resulting in increased resistance against overheating and improved durability.

High-pressure die-cast production processes keep overall weight to a minimum, resulting in thin wall thickness while retaining reliability.

• Design → optimized mass centralization and increased efficiency
• New steel oil pump gear and increased oil pressure → improved durability and resistance against overheating
• High pressure die-cast production process → thin walls for reduced weight while maintaining strength

Gearbox

The redesigned lightweight 5-speed gearbox is produced by Pankl Racing Systems and ensures the highest level of durability and reliability. A weight-optimized shift shaft reduces the operating force required for gear changes, and the gearbox also features a revised transmission ratio (29:72). The new Easy Shift sensor is positioned on the shift drum, allowing clutchless upshifts. The function can be activated/deactivated via the new QS marked button on the map select switch, located on the left side on the handlebar.

The new gear lever features a design that prevents dirt build-up, and keeps the lever tip in its original position even in the toughest conditions. An advanced gear sensor selects a specific engine map tailored for each gear.

• New 5-speed gearbox → revised transmission ratio (29:72) for smooth and precise shifting
• Weight-optimized shift shaft → reduced operating force required for gear changes
• Integrated Easy Shift sensor positioned on the shift drum allows clutchless upshifts → seamless shifting function can be activated/deactivated with map select switch
• Integrated gear sensor → specific engine maps for each gear

DDS clutch

The FC450 Rockstar Edition features a revised DDS (Dampened Diaphragm Steel) clutch. The exclusive characteristics of this system include a single diaphragm steel pressure plate instead of traditional coil springs. It integrates a damping system for better traction and durability. The clutch basket is a single-piece CNC-machined steel component that allows the use of thin steel liners and contributes to the compact design of the engine.

The main improvements include better clutch cooling from pressure lubrication, reducing clutch fade from high-stress usage while the clutch basket has been redesigned and adapted for the new 5-speed transmission.

• DDS clutch → lightweight with consistent modulation and exceptional durability
• Improved clutch cooling from pressure lubrication → reduced clutch fade from high stress
• Redesigned clutch basket → adapted for new 5-speed transmission ratio

Frame

The hydro-formed, laser-cut and robot-welded frame is expertly crafted. Constructed with specifically calculated parameters of longitudinal and torsional flex, the frame provides exceptional rider feedback, energy absorption and straight-line stability. Additionally, the frame features forged brackets for mounting the newly designed polyamide skid plate fitted as standard on the Rockstar Editions.

Rotational masses in the frame and the forged steering head connection have been repositioned. Together with the new shock mounting, which is no longer connected to the main tube, the anti-squat of the chassis has been significantly improved. Also, the wall thickness of the frame has been optimized to achieve improved reliability and specific rigidity in high stress areas such as the steering head and the shock mounts. Parallel frame mounts (same position on left and right sides) improve chassis flex characteristics, while stability characteristics remain unrivalled.

Another highlight of the new frame topology is that the footrest mounting positions have been moved inwards, resulting in less susceptibility to hooking in deep ruts or when scrubbing jumps. The overall size of the all-new footrests has been increased, designed with the help of state-of-the-art computational fluid dynamics (CFD). The new one-piece steering head seal allows easier mounting in case of replacement or service and offers improved reliability.

The frame of the Rockstar Editions is finished off in a premium black fine-structured powder coating. The standard frame protectors feature a new and improved topology, guaranteeing superior protection, durability, and advanced grip in any condition. Mounted with four screws, using the integral frame brackets, the newly designed polyamide composite skid plate offers superior protection against dirt and hard impacts on the frame and engine.

• Specifically engineered longitudinal rigidity → exceptional rider feedback, energy absorption and stability
• Repositioned rotational masses and new shock mounting → significantly improved anti-squat of chassis
• Topology-optimized frame wall thickness for specific rigidity and improved reliability in high-stress areas (e.g., steering head, shock mount)
• New parallel frame mounts (same position on left and right side) for improved flex characteristics
• Footrest mounting position moved inwards for reduced risk of hooking in deep ruts or when scrubbing
• New, service friendly one-piece steering head seal → easier mounting, improved reliability
• Durable powder coated finish with standard frame protectors and composite skid plate

Polyamide-reinforced aluminum subframe

Using 60% polyamide and 40% aluminum, the two-piece subframe has a total weight of just 3.9 pounds (1.8 kg). With the help of computational dynamics, specific rigidity was engineered into the light and robust subframe, delivering outstanding handling and rider comfort.

The lower subframe spars and frame mounts are made from cast aluminum profiles to guarantee robustness and reliability where needed. The upper subframe is made from injection-molded polyamide, enabling specific flex characteristics and allowing a lightweight construction.

• New topology-optimized polyamide/aluminum hybrid construction
• Lower subframe spars and frame mounts made from (cast) aluminum profiles → extremely robust and reliable (no weld joints)
• Upper subframe made from injection-molded polyamide → specific rigidity and flex benefit handling and comfort

Swingarm

The new hollow die-cast aluminum swingarm is designed to offer optimal stiffness and reliability at the lowest possible weight. The topology has been optimized for optimal rigidity, while an improved casting process reduces weight by approximately 190 grams. In order to optimize and match the new chassis flex characteristics, a new 22mm rear axle is fitted.

Additionally, the chain guard and chain slider have been completely redesigned, resulting in improved durability and less susceptibility to hooking on external objects. This new design will help reduce dirt build up around the swingarm and chain guard, especially in extreme muddy conditions.

Chain adjustment markings are also visible from above to make for simpler adjustment.

• New die-cast swingarm → topology-optimized for optimal rigidity
• Improved casting process for reduced weight → 190 grams less than previous generation
• New 22mm rear axle optimized to match chassis flex characteristics
• Newly designed chain guard and chain slider
  • Transitions aligned with swingarm surface, spring-steel mounted for improved durability
• Overall, less susceptible to hooking on external objects

WP XACT front fork with AER technology

The 48mm split air fork features a capsulated air spring and pressurized oil chamber for progressive and consistent damping. Oil and air bypasses reduce pressure peaks and, in combination with a midvalve damping system, the fork provides exceptional feedback and rider comfort. A new hydrostop improves bottoming resistance through more progressive damping force in the last 40mm of travel. Additionally, rebound is also reduced leading to the fork being lower on initial acceleration after a hard landing. A redesigned fork protection ring increases protection against dirt intrusion.

Settings are easily adjusted via a single air-pressure preload valve, as well as via easy access click adjusters for compression and rebound. Additionally, the air pump needed to adjust the fork’s air pressure is provided as standard.

• WP XACT front fork → 48mm air type with split damping function
• Midvalve damping system → exceptional damping and consistent performance
• Capsulated air spring and pressurized oil chamber → progressive and consistent damping
• New hydrostop in fork legs → improved bottoming resistance and reduced rebound
  • More progressive damping in last 40 mm of travel (total 310 mm) → previous generation hydrostop was only effective in last 10 mm of travel
  • Reduced rebound → fork stays lower on initial acceleration after hard landing
• Easy access clicker dials → simple and fast clicker settings
• Redesigned fork protection rings → increased protection against dirt intrusion

CNC-machined triple clamps

Made from high-grade aluminum, the CNC-machined Factory Racing triple clamps feature optimally tuned steering stem stiffness, perfect alignment of the fork tubes and precise geometry of the fork clamps to ensure highly responsive and smooth fork action. Maximum gains in handling are provided by simple offset adjustment of 20 mm or 22 mm.

Newly designed, topology-optimized handlebar mounts provide increased grip surface for less handlebar twist at the same weight as the previous generation. Additionally, they allow for both rubber-damped and fixed mounting providing customizable handlebar flex.

• Rubber-damped → less vibration, less precise front-end feel (OE)
• Fixed → increased vibration, more precise front-end feel

The front number plate integrates a triple clamp protector which covers the lower triple clamp and protects it from wear caused by roost.

• CNC-machined aluminum with anodized surface → finest quality and reliability
• Perfect clamping and alignment → smooth fork action
• New, topology-optimized handlebar mounts → increased grip surface for less handlebar twist, same weight as previous generation
• Rubber damping on top clamp → reduced vibration, increased comfort
• Adjustable handlebar position → adjustable ergonomics

WP XACT rear shock

An all-new design results in a rear shock with 15mm less overall length and 100 grams less weight compared to the previous generation, while keeping the rear wheel travel unchanged at 300mm. The shock is matched to a revised linkage system with a new geometry to deliver the same progression as before but with the greatest possible traction and absorption. Combined with the new frame geometry, it improves the ground clearance of the linkage and is therefore less susceptible to damage when bottoming out.

The new, computational fluid dynamics (CFD) optimized main piston in the shock improves initial comfort and provides strong hold-up. Differently sized flow holes allow the shims to open more easily and reduce the overall stress of oil flow and pressure on the shims. Reduced weight also means less moving mass, resulting in lower forces on the main piston.

A fully hand-adjustable dual compression control concept allows high- and low-speed settings to be changed by hand. Together with the newly designed rebound adjuster, which is hand or tool adjustable, riders are now able to adjust their shock settings without tools and without the help of a mechanic at the racetrack.

On top of the tool-free setting adjustment possibilities, a new preload adjuster is introduced bringing increased resistance to dirt intrusion. A new two-piece spring retainer allows for quick mounting without splitting the shock.

With its low-friction SKF linkage seals, the WP XACT rear shock provides advanced damping characteristics for unsurpassed traction and energy absorption. A pressure balance inside the shock ensures consistent damping, resulting in superior rider comfort and feel.

• New lightweight, compact rear shock design with 15 mm reduced overall length
  • MY22 → 470mm / MY23 → 455mm | rear wheel travel unchanged → 300mm
  • Reduced weight results in less moving mass → 100 grams lighter design results in lower forces on bearings
• New CFD-optimized main piston increases initial comfort and guarantees strong hold-up
• Improved ground clearance, lower risk of damage in extreme bottoming-out situations
• New dual compression control allows high- and low-speed settings to be adjusted by hand
• New rebound adjuster allows changing setting by hand or tool
• Reworked preload adjuster with increased dirt intrusion resistance and quick mounting concept
• Low-friction SKF linkage seals → refined rear shock response for advanced damping characteristics
• Pressure balance inside the shock body → consistent damping
• Two-piece spring retainer allows for quick mounting and assembly of preload adjuster and shock

Brembo hydraulic clutch

The high-performance Brembo hydraulic clutch system guarantees even wear, near maintenance-free operation and perfect modulation in every condition. It means that play is constantly compensated so that the pressure point and function of the clutch remain identical in cold or hot conditions, as well as over time. Countless hours of race-focused testing have proven the exceptional reliability of the high-quality, Italian-made Brembo hydraulic system.

• Brembo hydraulic clutch system → perfect modulation and outstanding reliability in every condition

Brakes

The highest level of quality is guaranteed with class-leading Brembo calipers and controls. The 260mm floating front and 220mm wave rear discs deliver superior stopping power, instilling confidence in all conditions. A new polyamide composite front disc protector is fitted as standard for added protection.

• Brembo brake calipers and high-performance discs → superior stopping power with greater control and confidence
• New polyamide composite front disc protector → added protection and minimal weight

Footpegs

The all-new, CFD designed footrests offer a bigger surface for boot soles while being less susceptible to hooking on deep ruts, take-offs when scrubbing or track barriers. The result is better control of the bike in all conditions. This was achieved by a new, narrower mounting concept integrated in the frame design which also reduces weight.

• New, topology-optimized, die-cast footrests → reduced weight and less susceptible to dirt build-up
• Footrest mount integrated in frame → narrower profile is less susceptible to hook on deep ruts

ProTaper handlebar

The ProTaper handlebar is second to none for function and style. Manufactured to exacting standards, the handlebar features class-leading fatigue resistance at a minimal weight. The handlebar bend further increases comfort with an optimal pressure point on the rider’s hands.

• ProTaper handlebar → class-leading function and style
• Husqvarna bend → optimal comfort

Grips and throttle assembly

The ODI lock-on grip on the left side does not require gluing, while on the right, the vulcanized grip features an innovative integrated throttle mechanism. The assembly has easy free-play adjustment and, by changing a cam, throttle progression can be altered. The ODI lock-on grips come standard in a softer, grey compound on the Rockstar Editions.

• Throttle assembly and ODI grips → easily alter throttle progression; easy grip mounting without glue

Map select switch, traction and launch control

Designed for easy and intuitive operation, the new map select switch comes as standard on the Rockstar Edition. It activates traction and launch control, selects between two engine maps (aggressive/smooth) and activates the Easy Shift feature. Map 1 is the standard map for linear, predictable power, while Map 2 is an aggressive map for added throttle response and more explosive power output.

The new Easy Shift function (upwards only) can be activated or deactivated via the map select switch. The function works only when upshifting, interrupting the ignition for a fraction of a second. This allows upshifting while the throttle is fully opened without the use of the clutch lever. A sensor on the shift drum registers the force from the shift lever, sends the signal to the ECU and the ignition timing is interrupted. To prevent unintended shifts and false neutrals, the function is only active from second to fifth gears.

With the engine at idle, launch control is engaged by pressing the traction control and Easy Shift switch simultaneously. Both symbols will start flashing to indicate the launch control is active. This function limits the amount of power to the rear wheel, improving traction and preventing loss of control under hard acceleration. Once the rider shifts up a gear, the launch control will deactivate automatically. Additionally, the Easy Shift function is deactivated while launch control mode is engaged.

Traction control is engaged by a switch marked ‘TC’ and functions by analyzing throttle input from the rider and the rate at which engine RPM increases. If the RPM increases too quickly, the engine management system (EMS) registers a loss of grip and reduces the amount of power to the rear wheel ensuring maximum traction. This is a distinct advantage in wet or muddy conditions.

• Newly designed handlebar map select switch → alters engine characteristics according to conditions and rider preference
• New Easy Shift function → clutch-free upshifting
• Traction control → optimal traction in all conditions
• Launch control → maximum traction for perfect starts

Start/stop switch

The new combined start/stop switch on right side of handlebar allows for easy, intuitive starting and stopping of the engine.

Engine management system (EMS)

The Keihin EMS is specifically designed to be smaller, lighter and faster at processing data. It integrates launch control for perfect starts, selectable engine maps via the traction control switch on the handlebar as well as the Easy Shift function. Combined with the gear sensor, power delivery is tailored for each gear.

A new rollover sensor (ROS) cuts the ignition in case of extreme crashes, adding another level of safety to the new generation of Husqvarna motocross machines. Additionally, the new hour meter now comes with an integrated FI status LED and a fuel level indicator.

• Keihin EMS → small, light and faster at processing engine data for more efficient engine management
• New rollover sensor (ROS) → automatic cutting of ignition in extreme crashes
• New hour meter with integrated FI status LED and fuel level indicator
• Gear sensor → specific engine maps for each gear

44mm throttle body

The Rockstar Edition models feature a 44mm Keihin throttle body. The injector is positioned to ensure the most efficient flow into the combustion chamber, and to ensure optimal throttle response the throttle cable is mounted directly without a linkage providing more immediate throttle response and feel.

• Throttle body → 44mm, injector positioned for optimal flow, more immediate throttle response thanks to direct cable mounting

Exhaust system

The Rockstar Edition exhaust systems are expertly designed to deliver leading performance for the least possible weight. The header pipe features a flow-designed resonance chamber integrated into the header pipe. The header pipe is designed and manufactured in two pieces to be as compact as possible. The position of the join allows it to be removed without having to remove the rear shock. Further innovation allows for a short, compact silencer without increased noise levels. The silencer is crafted from lightweight aluminum and is stylishly finished in a black coating that highlights its premium quality.

• Compact exhausts → lightweight and engineered for optimal performance
• Header pipe mounted directly onto engine mount for improved serviceability
• Header join position → removal of exhaust without removing rear shock

Electric start and Li-Ion battery

To deliver the benefit of an easy electric starting system, a Li-Ion 2.0 Ah battery is fitted to the Rockstar Edition models. The Li-Ion battery weighs approximately 2.2 lb (1 kg) less than a conventional lead/acid battery, so the convenience of electric starting is delivered while minimizing overall weight.

• Electric starter → easy starting when time is critical
• Li-Ion battery → lightweight, 1 kg lighter than a conventional battery

Integrated cooling system and radiators

The radiators are expertly crafted by WP using high-strength aluminum. CFD optimization is used to channel air through the radiators more efficiently and provide optimal cooling in any condition. The cooling system is integrated into the frame allowing for improved cooling by channeling coolant through the frame while eliminating the need for additional hoses. A large center tube running through the frame reduces the pressure at this point in the system allowing for a more consistent coolant flow and now includes an internal thermostat for added reliability.

Additionally, the radiators are mounted close to the center of gravity for improved handling agility.

• Integrated cooling → maximum efficiency in minimum space
• New bayonet closure radiator caps
• WP radiators → efficient for optimal cooling
• Large central tube → consistent coolant flow

Fuel tank

The new 1.9 gallon (7.2 liter) polythene fuel tanks incorporate a threaded filler cap and an integrated fuel pump on the Rockstar Edition models. A new one-piece fuel pump with integrated filter provides improved fuel supply and allows the tank to be emptied further at low fuel levels. The external fuel line is specifically positioned to make it less exposed and susceptible to damage.

• New 1.9 gallon (7.2 liter) polythene fuel tanks → larger capacity for extended running times
• New one-piece fuel pump and filter for improved fuel supply → tank can be emptied further at low fuel levels
• External fuel line routing → less exposed and susceptible to damage

Airbox and tool-less air filter access

The CFD optimized airbox is designed with precisely positioned inlet ducts to prevent air deformation and ensure maximum airflow and filter protection. The air filter is easily accessed, without tools, by removing the left side panel. Easy maintenance is guaranteed by the Twin Air filter element and filter cage design, featuring a simple fail-proof mounting system for safe and accurate filter installation.

• CFD optimized airbox → improved air flow and maximized filter protection
• Intuitive filter mounting system → safe and accurate protection against dirt
• Tool-less filter access → quick and easy maintenance
• High-flow airbox cover in the by-pack → added customizability of the engine response

Factory wheel set

Black high-strength anodized DirtStar rims by D.I.D are laced to high quality black anodized CNC-machined hubs, using lightweight spokes and black anodized aluminum nipples to offer maximum weight savings and optimized handling and stability in the most extreme motocross conditions.

• Lightweight but strong and reliable construction → minimal unsprung weight

Tires

Dunlop Geomax MX33 Motocross tires featuring the proven ‘block-within-a-block’ design for more progressive cornering and superior grip are fitted as standard.

• Developed in top-level AMA Supercross and Motocross → enhanced handling, cornering and steering feel
• Wide range of application including sand, mud, loose surface, and hard pack
• Increased durability and crack resistance through an innovative rubber compound

Bodywork

The Rockstar Edition models feature bodywork which clearly showcases Husqvarna Motorcycles progressive approach to off-road motorcycles and striking black-and-white graphics stylishly adorn the Swedish-inspired design.

An improved rider triangle for better knee contact, especially when riding in the standing position, inspires confidence for riders of every ability and enables them to perform at the highest level for extended periods of time. The slim contact surfaces on the bodywork allow the rider to more easily move the bike around on track, and improve the overall handling and agility of the bike.

The flat seat profile, combined with the race engineered GUTS high-grip seat cover, deliver superior control in all conditions. A recessed pocket under the seat, just above the airbox, allows gripping and lifting of the bike.

The graphics of the all-new Rockstar Editions closely resemble the look of Husqvarna’s Factory race bikes for the 2022 season. Sponsor logos and graphic design elements are implemented using durable in-mold technology. A high-quality factory race look is guaranteed, even after hours of intense riding.

• Progressive bodywork → distinctive looks, modern design and graphics
• Improved rider triangle for better knee contact, especially when riding in the standing position
• Additional contact surface → allows for improved gripping and easier movement of the bike
• Recessed grip pockets → allowing better grip to lift the bike
• Seat → flat seat profile and high-grip Factory seat cover for exceptional comfort and control in all conditions

The 2022 FC 250 Rockstar Edition and FC 450 Rockstar Edition will be available in the United States only and will arrive at authorized Husqvarna Motorcycles dealers in February 2022.

TECHNICAL HIGHLIGHTS

• New bodywork with specifically tailored ergonomics for easier movement on the motorcycle
• New hydro-formed chromium molybdenum frame significantly improving anti-squat behavior
• New topology-optimized die-cast aluminum swingarm providing optimal rigidity and low weight
• New 250cc DOHC engine providing class-leading torque and peak power
• New 450cc SOHC engine providing class-leading performance and low weight
• New Easy Shift sensor providing seamless up-shifting
• High-performance Brembo hydraulic clutch system
• New aluminum-polyamide hybrid subframe construction providing specifically calculated rigidity and advanced durability
• New WP XACT 48mm front forks with AER technology offer more progressive end-of-stroke damping
• New WP XACT rear shock design with CFD-optimized main piston and tool-free adjusters
• New multifunctional map switch, which also activates the Easy Shift, Traction- and Launch Control
• New Rockstar Energy Husqvarna Factory Racing graphics
• Factory Racing CNC-machined triple clamps with adjustable offset [20mm – 22mm]
• Factory wheel set with D.I.D DirtStar rims and black anodized CNC-machined hubs
• New polyamide composite skid plate for advanced protection and durability
• New polyamide composite front brake disc guard for added protection
• Mechanical Factory holeshot device as standard
• Soft, grey ODI lock-on grips
• GUTS Factory high-grip seat cover
• Premium-quality ProTaper handlebar and bar pad
• Electric starter powered by a lightweight Li-Ion 2.0 Ah battery

SPECIFICATIONS

Engine Type: Single-cylinder, liquid-cooled four-Stroke
Displacement: 449.9cc
Bore / Stroke: 95 / 63.4mm
Compression Ratio: 13.1:1
Starter/Battery: Electric Starter / Lithium Ion 12.8V, 2 Ah
Transmission: 5 Gears
Fuel System: Keihin EFI, 44mm Throttle Body
Lubrication: Pressure lubrication with 2 oil pumps
Primary Ratio: 29:72
Final Drive: 13:51
Cooling: Liquid Cooling
Clutch: Wet Multi-Disc DDS-Clutch, Brembo Hydraulics
Ignition: Keihin EMS
Frame: Central Double-Cradle Type 25CrMo4 Steel
Sub Frame: Aluminum / Polyamide Glass Fiber
Handlebar: ProTaper, Aluminum Ø 28mm/22 mm
Front Suspension: WP XACT USD Fork, Ø 48mm
Rear Suspension: WP XACT Monoshock with Linkage
Suspension Travel Front/Rear: 310mm / 300mm
Front/Rear Brakes: Disc Brake 260mm / 220mm
Front/Rear Rims: 1.60x 21” / 2.15 x 19” DID
Front/Rear Tires: 80/100-21” / 120/80-19” Dunlop MX33
Chain: 5/8 x 1/4 in
Silencer: Aluminum
Steering Head Angle: 26.1º
Triple Clamp Offset: 22mm
Wheelbase: 58.8 ± 0.4 in / 1,494 ± 10mm
Ground Clearance: 343mm / 13.5 in
Seat Height: 954mm / 37.5 in
Tank Capacity, Approx: 7.2 L / 1.9 gal
Weight (without fuel), Approx: 228.1 lbs