2020 Husqvarna FC450

Notes:

🏍️ 2020 Husqvarna FC450 Specs 🔧 Engine

• Engine: 449.9 cc, liquid-cooled, 4-stroke single

• Valve train: SOHC, 4 valves

• Bore x stroke: 95.0 × 63.4 mm

• Compression ratio: 12.6:1

• Fuel system: Keihin EFI (44 mm throttle body)

• Start: Electric start

👉 Makes roughly ~63 hp (47 kW) at peak

⚙️ Drivetrain

• Transmission: 5-speed manual

• Clutch: Hydraulic (Magura)

• Final drive: Chain

🛠️ Chassis & Suspension

• Frame: Chromoly steel (hydro-formed)

• Subframe: Carbon composite (lightweight design)

Suspension

• Front: WP XACT AER 48 air fork (adjustable)

• Rear: WP XACT shock (fully adjustable)

• Travel: ~11.8 in (300 mm) front & rear

🛑 Brakes

• Front: Disc (Brembo system)

• Rear: Disc

📏 Size & Weight

• Weight (no fuel): ~225 lb (102 kg)

• Seat height: 37.8 in (960 mm)

• Ground clearance: 14.6 in (370 mm)

• Wheelbase: 58.5 in

⛽ Fuel

• Fuel capacity: 7.0 L (1.8 gal)

• Fuel type: Premium recommended

🛞 Wheels & Tires

• Front: 90/90-21

• Rear: 120/80-19

🔑 Key Features

• Traction control + launch control

• Map switch (multiple engine maps)

• Lightweight lithium battery

• Very light overall chassis

• High-end race suspension

👍 What it’s like

• Known for smooth, controllable power (not as aggressive as some 450s)

• One of the lightest bikes in the class

• Excellent handling, especially in corners

🧠 Quick takeaway

• This is a full race motocross bike (not a trail bike)

• High maintenance compared to trail bikes (oil changes ~10 hrs typical)

• Best for:

  • motocross tracks

  • aggressive riding

  • experienced riders

I