2023 Husqvarna FC 450 Rockstar Edition Bike


Husqvarna FC 450 Rockstar Edition Bike
Model Year
Engine Size
Engine Type
Engine Displacement
Bore x Stroke
95 mm x 63.4 mm
Compression Ratio
Fuel System
Electronic Fuel Injection (EFI), 44 mm Keihin throttle body
Keihin EMS; E-Start electric starter with lightweight Li-Ion 2.0 Ah battery
Pankl Racing Systems 5-speed, motocross specific gear ratios (29:72); wet multi-disc CNC-machined Damped Diaphragm Steel (DDS) clutch, redesigned clutch basket, Brembo hydraulics
Final Drive
Chain, #520, non-sealed
Suspension Front
WP XACT-USD split air forks, AER technology, capsulated adjustable air spring, compression and rebound adjust, 48 mm diameter, midvalve damping system, new hydrostop for improved bottoming resistance, revised shim stack settings, 310 mm (12.2") travel
Suspension Rear
WP XACT Monoshock with linkage, Computational Fluid Dynamics (CFD) optimized main piston, low-friction SKF seals, revised linkage system, high/low-speed compression adjust, rebound adjust, revised shim stack settings, 300 mm (11.8") travel
Brakes Front
Brembo hydraulic disc, 260 mm rotor, 2K carbon composite front brake disc protector
Brakes Rear
Brembo hydraulic disc, 220 mm rotor
Tires Front
Dunlop Geomax MX33, 80/100-21"
Tires Rear
Dunlop Geomax MX33, 120/90-19"
Overall Length
Overall Width
Overall Height
Seat Height
947 mm (37.3")
1494 mm (58.8")
Ground Clearance
343 mm (13.5")
Fuel Capacity
7.2 liters (1.9 gallons)
Curb Weight
103.7 kg (228.6 lbs) without fuel
• New Engine Management System (EMS)
• Two engine maps, selectable via handlebar-mounted switch: standard for linear predictable power, or aggressive for improved throttle response and sharper explosive power output
• New Rollover Sensor (ROS) for EMS cuts ignition and shuts off engine in the event of a severe crash
• Traction Control analyzes throttle input from rider and engine RPMs; EMS reduces power to rear wheel when loss of grip is sensed
• New Quickshift function, with sensor on shift drum, is activated by QS button on map switch and allows upshifting without use of clutch while throttle is fully open
• Launch Control: engaged by pressing Traction Control and Quickshift buttons simultaneously; deactivates automatically after gear change
• New redesigned shift shaft reduced forces required for gear changes
• New, more durable fine punched cam chain for increased reliability
• New valve cover with fewer mounting screws and redesigned more compact cylinder head
• New steel oil pump gear and increased oil pressure for improved durability and resistance to overheating
• New refined frame with optimized wall thicknesses and new shock/skid-plate brackets and redesigned frame protectors
• New two-piece subframe, swingarm, CNC-machined triple clamps, and 22 mm rear axle
• New polythene fuel tank with new fuel pump design and position
• New hour meter with integrated fuel level indicator and status LED
• Rockstar Edition features Rockstar Energy Husqvarna Factory Racing graphics, GUTS Racing seat cover, revised shim stack settings for fork and shock, new 2K carbon composite skid plate, and new 2K carbon composite front brake disc protector
• Airbox: tool-free access to Twin Air filter from left side panel; includes second cover for sharper throttle response
• Engine type: single-cylinder, 4-stroke, SOHC, Diamond-like Carbon (DLC) rocker arm coatings, 40 mm intake valves, 33 mm exhaust valves, aluminum cylinder and forged bridged-box-type CP piston with anodized annular grooves, high-pressure die-cast crankcase
• Exhaust: single, flow-designed resonance chamber integrated into header pipe, FMF Factory 4.1 RCT silencer with blue anodized titanium body and carbon fiber end cap
• Frame: central double-cradle-type 25CrMo4 steel, two-piece polyamide/aluminum subframe, hollow die-cast aluminum swingarm
• Grips: ODI, lock-on, soft compound
• Handlebar: ProTaper
• Handlebar mount: two mounting options — rubber damped for less vibration or fixed for enhanced feedback; CNC-machined Factory Racing triple clamps
• Radiator: high-strength aluminum
• Wheels: Excel Takasago, CNC machined hubs
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