Minibikes
2011Cobra CX50 Junior
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The 2011 Cobra CX50 Junior is a lightweight minibike designed for young and beginner riders seeking entry-level off-road experience. Powered by a liquid-cooled 50cc two-stroke engine with a tuned exhaust system, it delivers accessible performance on a responsive chassis. Known for its affordability and durability, the CX50 Junior is best suited for learning fundamental riding skills on trails and beginner tracks.
- Capacity
- 50.0 ccm
- Engine
- Single, two-stroke
- Gearbox
- 1-speed
- Dry weight
- 36.7 kg
- Seat height
- 607 mm
- Power
- 5.4 HP (4.0 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built purely for small-statured youth to practice off-road cornering, throttle control, and basic motocross skills in a controlled, low-speed environment.
- Built for
- A tough little cross-trainer with real suspension travel and disc brakes front and rear, giving it surprisingly capable off-road manners for its size.
- Not ideal for
- This is not suitable for adult riders, road use, passengers, or anyone expecting meaningful speed or long-distance comfort.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Engine
- Capacity
- 50.0 ccm
- Power
- 5.4 HP (4.0 kW)
- Engine type
- Single, two-stroke
- Power/weight ratio
- 0.1471 HP/kg (dry)
- Bore x stroke
- 39.0 x 41.7 mm
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Kick
- Lubrication system
- Mixture lubrication
Transmission
- Gearbox
- 1-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Cobra 3Gx 3-Shoe
Dimensions & weight
- Wheelbase
- 908 mm
- Seat height
- 607 mm
- Dry weight
- 36.7 kg
- Ground clearance
- 216 mm
Chassis & suspension
- Frame
- Double Cradle 4130 CrMo steel
- Front suspension
- Marzocchi 32mm
- Rear suspension
- Ohlins Piggyback
- Front wheel travel
- 160 mm
- Rear wheel travel
- 170 mm
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 160 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 140 mm
- Front tyre
- 2.50-12
- Rear tyre
- 2.75-10
Other
- Color options
- Yellow/red/black/white
- Modifications compared to previous model
- Rear disk brake.
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 | 2011 | 2012 |
|---|---|---|
| Capacity | 50 cc | 50 cc |
| Dry weight | 37 kg | 37 kg |
| Seat height | 607 mm | 607 mm |
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 Cobra CX50 Junior?
The 2011 Cobra CX50 Junior has a Capacity of 50.0 ccm (3.05 cubic inches).
What engine power does the Cobra CX50 Junior have?
The 2011 Cobra CX50 Junior has a Power of 5.4 HP (4.0 kW).
How many gears does the Cobra CX50 Junior have?
The 2011 Cobra CX50 Junior has a Gearbox of 1-speed.
How much does the Cobra CX50 Junior weigh?
The 2011 Cobra CX50 Junior has a Dry weight of 36.7 kg (80.9 pounds).
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