Comparison of GAS GAS Halley 125 4T and GAS GAS Halley 125 [S]ave
| Attribute |  GAS GAS Halley 125 4T × |  GAS GAS Halley 125 × |
|---|---|---|
| General | ||
| Production from (year) | 2010 | 2009 |
| Make | GAS GAS | GAS GAS |
| Model | GAS GAS Halley 125 4T | GAS GAS Halley 125 |
| Category | Trial | Enduro / offroad |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, two-stroke |
| Fuel system | Carburettor. 26 mm | Carburettor. 26 mm |
| Displacement (cm³) | 124 | 124 |
| Cooling system | Air | Liquid |
| Transmission type,final drive | Chain | - |
| Bore (mm) | 54 | 54 |
| Stroke (mm) | 54.5 | 54.5 |
| Gearbox | 6-speed | 6-speed |
| Clutch | Multidisc hydraulically operated | Multiple disks in oil bath, hydraulic |
| Chassis | ||
| Front suspension | Fork, 41 mm. | Fork, 41 mm. |
| Rear suspension | One-piece aluminium swing arm | Single rear shock absorber system |
| Front brakes | Single disc. 2-piston caliper. | Single disc. Twin piston caliper. |
| Rear brakes | Single disc. Single-piston | Single disc |
| Diameter (mm) | 220 | 220 |
| Frame type | Made with Cromoly tubing. Aluminium swing arm. . | - |
| Front tyre | 2.75-21 | 80/90-21 |
| Rear tyre | 4.10-18 | 110/80-18 |
| Front wheel travel (mm) | 255 | 255 |
| Rear wheel travel (mm) | 246 | 246 |
| Other | ||
| Starter | Kick | - |
| Color options |
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|
| Dimensions | ||
| Wheelbase (mm) | 1,460 | 1,460 |
| Seat height (mm) | 945 | 945 |
| Performance | ||
| Fuel capacity (l) | - | 7.4 |
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