| MODEL | HUSQVARNA FS 450 SUPERMOTO 2021 |
| Year | 2021 |
| Engine Type | Four stroke, single cylinder, SOHC, 4 valves |
| Displacement / Capacity | 449.9 cc / 27.4 cu in |
| Bore X Stroke | 95 x 63.4 mm |
| Compression Ratio | 12.75:1 |
| Cooling System | Liquid cooled |
| Max Power | — |
| Max Torque | — |
| Ignition | Keihin EMS |
| Induction | Keihin EFI, 44 mm throttle body |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | Pressure lubrication with 2 rotor pumps |
| Gear Box | 5 speed |
| Clutch | Suter slipper clutch, Brembo hydraulics |
| Final Drive | Chain 5/8 x 1/4 in |
| CHASSIS SPECS | |
| Frame | Central double-cradle chromoly steel with aluminium subframe |
| Front Suspension | 48 mm WP XACT USD fork, 284.5 mm / 11.2 in travel |
| Rear Suspension | Linkage-assisted WP XACT shock, 266.7 mm / 10.5 in travel |
| Front Brakes | Single 310 mm disc, Brembo |
| Rear Brakes | Single 220 mm disc, Brembo |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 890 mm / 35 in |
| Wheelbase | 1468 mm / 57.8 in |
| Ground Clearance | 290 mm / 11.4 in |
| Dry Weight | 102.5 kg / 226 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 125/60-16.5 |
| Rear Tyre | 165/65-17 |
| FUEL SYSTEM | |
| Fuel Capacity | 7 Litres / 1.85 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The 2021 FS 450 saw no major changes, with updates mostly to suspension setup: new mid-valve damping in the fork, revised linkage seals and a shorter wheelbase. It has two throttle maps, traction control and launch control, with a claimed 63 hp.
