Comparison of GAS GAS EC 125 2009 and GAS GAS Halley 125 4T [S]ave
| Attribute |  GAS GAS EC 125 2009 × |  GAS GAS Halley 125 4T × |
|---|---|---|
| General | ||
| Production from (year) | 2009 | 2010 |
| Make | GAS GAS | GAS GAS |
| Model | GAS GAS EC 125 | GAS GAS Halley 125 4T |
| Category | Enduro / offroad | Trial |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, four-stroke |
| Fuel system | Carburettor. 38 mm | Carburettor. 26 mm |
| Displacement (cm³) | 124 | 124 |
| Cooling system | Liquid | Air |
| Transmission type,final drive | Chain | Chain |
| Bore (mm) | 54 | 54 |
| Stroke (mm) | 54.5 | 54.5 |
| Gearbox | 6-speed | 6-speed |
| Ignition | Digital magnetic flywheel. | - |
| Clutch | Hydraulic multidisc. | Multidisc hydraulically operated |
| Lubrication system | 2% mixture. | - |
| Chassis | ||
| Front suspension | 45 mm upside-down fork | Fork, 41 mm. |
| Rear suspension | Aluminium swingarm. Progressive system with shock absorber | One-piece aluminium swing arm |
| Front brakes | Double disc | Single disc. 2-piston caliper. |
| Rear brakes | Single disc | Single disc. Single-piston |
| Diameter (mm) | 220 | 220 |
| Frame type | Deltabox made with rectangular-profile Cr-Mo tubing. | Made with Cromoly tubing. Aluminium swing arm. . |
| Front tyre | 90/90-21 | 2.75-21 |
| Rear tyre | 140/80-18 | 4.10-18 |
| Front wheel travel (mm) | 295 | 255 |
| Rear wheel travel (mm) | 310 | 246 |
| Other | ||
| Starter | Kick | Kick |
| Color options |
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| Dimensions | ||
| Wheelbase (mm) | 1,460 | 1,460 |
| Dry weight (kg) | 92 | - |
| Seat height (mm) | 945 | 945 |
| Performance | ||
| Fuel capacity (l) | 9.5 | - |
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