Minibikes
2005Aprilia Mini RX 50 Challenge
25 fields on record
The 2005 Aprilia Mini RX 50 Challenge is a lightweight minibike designed for young riders and beginners seeking affordable off-road fun. Powered by a simple 50cc air-cooled single-cylinder engine with kick-start ignition, it delivers reliable performance through a chain-drive transmission. Best known for its durable construction and accessible handling, it remains ideal for introducing riders to cross training.
- Capacity
- 49.8 ccm
- Engine
- Single
- Gearbox
- Not on record
Know it? Add it → - Dry weight
- 38.0 kg
- Seat height
- 734 mm
- Power
- 3.0 HP (2.2 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- It is a pint-sized cross-style trainer machine built for supervised minibike races and off-road play, not for real transportation.
- Built for
- The bike has a playful, toy-like cross bike character with monoshock rear suspension mimicking full-size motocross machines despite its tiny drum brakes and minimal power.
- Not ideal for
- This is not suitable for adult riders, road use, passengers, or anyone seeking real speed, comfort, or long-distance capability.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Engine
- Capacity
- 49.8 ccm
- Power
- 3.0 HP (2.2 kW)
- Engine type
- Single
- Power/weight ratio
- 0.0789 HP/kg (dry)
- Bore x stroke
- 39.0 x 41.7 mm
- Compression
- 9.0:1
- Cooling system
- Air
- Fuel system
- Carburettor
- Starting
- Kick
- Lubrication system
- Separate mixing with variable displacement pump
Transmission
- Final drive
- Chain
- Clutch
- Multiple disk in oil bath
Dimensions & weight
- Wheelbase
- 1100 mm
- Seat height
- 734 mm
- Dry weight
- 38.0 kg
- Ground clearance
- 280 mm
Chassis & suspension
- Front suspension
- Mechanical
- Rear suspension
- Hydraulic monoshock
- Front wheel travel
- 170 mm
- Rear wheel travel
- 245 mm
Brakes & wheels
- Front brakes
- Expanding brake (drum brake)
- Rear brakes
- Expanding brake (drum brake)
- Front tyre
- 14-2.50
- Rear tyre
- 12-3.00
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
Rider Reviews
Common questions
What is the engine size of the Aprilia Mini RX 50 Challenge?
The 2005 Aprilia Mini RX 50 Challenge has a Capacity of 49.8 ccm (3.04 cubic inches).
What engine power does the Aprilia Mini RX 50 Challenge have?
The 2005 Aprilia Mini RX 50 Challenge has a Power of 3.0 HP (2.2 kW).
How much does the Aprilia Mini RX 50 Challenge weigh?
The 2005 Aprilia Mini RX 50 Challenge has a Dry weight of 38.0 kg (83.8 pounds).
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