| MODEL | GASGAS SM 450 FSE 2007 - 2009 |
| Year | 2007 - 2009 |
| Engine Type | Four-stroke, single cylinder, DOHC, 4 valves |
| Displacement / Capacity | 449 cc / 27.4 cu in |
| Bore X Stroke | 97 x 60.8 mm |
| Compression Ratio | — |
| Cooling System | Liquid cooled |
| Max Power | 37.2 kW / 50 hp @ 7340 rpm |
| Max Torque | 49 Nm / 36.1 lb-ft @ 6890 rpm |
| Ignition | Integrated into the injection system |
| Induction | Electronic fuel injection (battery-less EFI) |
| Start System | Electric and kick |
| TRANSMISSION SPECS | |
| Lubrication | Wet sump |
| Gear Box | 6-speed |
| Clutch | Multi-disc, hydraulically operated |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Deltabox type, cromoly rectangular tubing, aluminium swingarm |
| Front Suspension | 45 mm Marzocchi fork, 295 mm / 11.6 in travel |
| Rear Suspension | Progressive linkage, Ohlins shock, 320 mm / 12.6 in travel |
| Front Brakes | Single 260 mm disc, 2-piston caliper |
| Rear Brakes | Single 220 mm disc, 1-piston caliper |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 900 mm / 35.4 in |
| Wheelbase | 1475 mm / 58.1 in |
| Ground Clearance | 290 mm / 11.4 in |
| Dry Weight | 118 kg / 260 lb |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 120/60-17 |
| Rear Tyre | 150/60-17 |
| FUEL SYSTEM | |
| Fuel Capacity | 8.5 Litres / 2.2 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The later SM 450 FSE continued the fuel-injected four-stroke supermotard formula with the same 449 cc four-valve engine and chassis. The source lists no mechanical changes from the earlier period, so it is a continued production run of the same bike.
