| Attribute | Aprilia MX 125 2004 × | GAS GAS EC Racing 125 × |
|---|---|---|
| General | ||
| Production from (year) | 2004 | 2014 |
| Make | Aprilia | GAS GAS |
| Model | Aprilia MX 125 | GAS GAS EC Racing 125 |
| Category | Enduro / offroad | Enduro / offroad |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Fuel system | Injection | Carburettor. Keihin PKWS 38 mm |
| Engine details | - | Direct reed valve VForce 3 |
| Displacement (cm³) | 124 | 124 |
| Power (kw) | 10.9 | - |
| Cooling system | Liquid | Liquid |
| Transmission type,final drive | Chain | Chain |
| Bore (mm) | 54 | 54 |
| Stroke (mm) | 54.6 | 54.5 |
| Gearbox | 6-speed | 6-speed |
| Ignition | - | Digital magnetic flywheel. |
| Clutch | - | Wet multiplate with hydraulic control |
| Lubrication system | - | 2-stroke-oil/fuel mixed 1:50 |
| Compression | 12.0:1 | - |
| Chassis | ||
| Front suspension | 40 mm upside-down telescopic fork | Marzocchi Shiver invertida Ø45 mm |
| Rear suspension | Aluminium swinging fork with rectangular cross-section | Aluminium swingarm. Reiger Mono shock, Special settings. |
| Front brakes | Single disc | Double disc. Wave floating, 2-piston caliper |
| Rear brakes | Single disc | Single disc. Wave disc, 1-piston caliper |
| Diameter (mm) | 220 | 220 |
| Frame type | Closed-cradle split at the level of the exhaust | Perimeter frame in chrome-molybdenum |
| Front tyre | 110/70-17 | 90/90-21 |
| Rear tyre | 150/60-17 | 140/80-18 |
| Front wheel travel (mm) | 260 | 298 |
| Rear wheel travel (mm) | 280 | 298 |
| Other | ||
| Starter | - | Kick |
| Color options |
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|
| Dimensions | ||
| Wheelbase (mm) | 1,500 | 1,480 |
| Dry weight (kg) | 35 | 96 |
| Power/weight ratio | 0.3114 | - |
| Overall height (mm) | 1,205 | 1,260 |
| Overall length (mm) | 2,180 | 2,200 |
| Overall width (mm) | 890 | 830 |
| Seat height (mm) | 890 | 950 |
| Performance | ||
| Reserve fuel capacity (l) | 1.5 | - |
| Fuel capacity (l) | 11 | 9.5 |