Motocross Bikes
2004Aprilia MX 125
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The 2004 Aprilia MX 125 is a lightweight enduro motorcycle designed for young and novice off-road riders seeking an accessible entry point into dirt biking. Its compact 124cc liquid-cooled engine delivers manageable power while the featherweight 35kg frame and low 890mm seat height ensure confidence-building handling on various terrain. Best known for combining affordability with genuine performance, the MX 125 remains an ideal starter bike for learning fundamental off-road riding skills.
- Capacity
- 124.0 ccm
- Engine
- Single, two-stroke
- Gearbox
- 6-speed
- Dry weight
- 35.0 kg
- Seat height
- 890 mm
- Power
- 15.0 HP (11.0 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- This is a supermoto-style machine built for playful, aggressive street and light off-road riding rather than long-distance travel or outright top speed.
- Built for
- It has the character of a nimble, high-strung supermoto hooligan bike, eager to wheelie, stoppie, and carve tight corners rather than cruise smoothly.
- Not ideal for
- It is not a good fit for riders wanting a comfortable highway tourer, a passenger-friendly bike, or a low-maintenance four-stroke commuter.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usEngine
- Capacity
- 124.0 ccm
- Power
- 15.0 HP (11.0 kW)
- Engine type
- Single, two-stroke
- Power/weight ratio
- 0.4286 HP/kg (dry)
- Bore x stroke
- 54.0 x 54.6 mm
- Compression
- 12.0:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Kick
- Ignition
- Electronic with capacitive discharged.
- Lubrication system
- Separate mixer, with variable flow-rate pump.
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Multiple disks in oil bath.
Dimensions & weight
- Wheelbase
- 1500 mm
- Overall length
- 2180 mm
- Overall width
- 890 mm
- Overall height
- 1205 mm
- Seat height
- 890 mm
- Dry weight
- 35.0 kg
- Fuel capacity
- 11.00 litres
- Ground clearance
- 250 mm
- Reserve fuel capacity
- 1.50 litres
Chassis & suspension
- Frame
- Closed-cradle split at the level of the exhaust
- Front suspension
- 40 mm upside-down telescopic fork
- Rear suspension
- Aluminium swinging fork with rectangular cross-section
- Front wheel travel
- 260 mm
- Rear wheel travel
- 280 mm
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 320 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 220 mm
- Front tyre
- 110/70-17
- Rear tyre
- 150/60-17
Other
- Color options
- Matrix black
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 2004 | 2005 | 2006 |
|---|---|---|---|
| Capacity | 124 cc | 124 cc | 124 cc |
| Dry weight | 35 kg | — | 38 kg |
| Seat height | 890 mm | 890 mm | 890 mm |
| Fuel capacity | 11 L | 11 L | 11 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the Aprilia MX 125?
The 2004 Aprilia MX 125 has a Capacity of 124.0 ccm (7.57 cubic inches).
What engine power does the Aprilia MX 125 have?
The 2004 Aprilia MX 125 has a Power of 15.0 HP (11.0 kW).
How many gears does the Aprilia MX 125 have?
The 2004 Aprilia MX 125 has a Gearbox of 6-speed.
How much does the Aprilia MX 125 weigh?
The 2004 Aprilia MX 125 has a Dry weight of 35.0 kg (77.2 pounds).
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