| MODEL | GASGAS EC 450 FSE 2003 - 2006 |
| Year | 2003 - 2006 |
| 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 | — |
| Max Torque | — |
| Ignition | Integrated into injection system |
| Induction | Electronic fuel injection (battery-less) |
| 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, chromoly 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 | 90/90-21 |
| Rear Tyre | 140/80-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 8.5 Litres |
| Fuel Consumption | — |
| Top Speed | — |
The 449 cc evolution of GasGas's fuel-injected four-stroke enduro line, replacing the 400 FSE with a bigger four-valve engine and battery-less electronic injection. It kept the same chassis as the EC range and is aimed at serious off-road and enduro riders.
