Cobra CX50 Junior - 2011 Specifications and Reviews

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.

2011
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Engine and Transmission Specifications

Exhaust systemTuned pipe and silencer
ClutchCobra 3Gx 3-Shoe
Transmission type,final driveChain
Gearbox1-speed
Cooling systemLiquid
Lubrication systemMixture lubrication
Fuel systemCarburettor
Bore x stroke39.0 x 41.7 mm (1.5 x 1.6 inches)
Engine detailsCase Reed / V-Force Reed Valve
Engine typeSingle cylinder, two-stroke
Capacity:50.00 ccm (3.05 cubic inches)
 
 

CategoryMinibike, cross
Year2011
ModelCobra CX50 Junior

Brakes, suspension, Frame and wheels

WheelsCobra 10´ Billet / Cobra 10´ Billet
Rear brakes diameter140 mm (5.5 inches)
Rear brakesSingle disc
Front brakes diameter160 mm (6.3 inches)
Front brakesSingle disc
Rear tyre dimensions2.75-10
Front tyre dimensions2.50-12
Rear suspension travel170 mm (6.7 inches)
Rear suspensionOhlins Piggyback
Front suspension travel160 mm (6.3 inches)
Front suspensionMarzocchi 32mm
Frame typeDouble Cradle 4130 CrMo steel
 
 

Physical measures and capacities

Wheelbase908 mm (35.7 inches)
Ground clearance216 mm (8.5 inches)
Seat height607 mm (23.9 inches) If adjustable, lowest setting.
Dry weight36.7 kg (81.0 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Modifications compared to previous modelRear disk brake.
Color optionsYellow/red/black/white
StarterKick

Performance Profile & Rider Fit

Best For

Track60%
City5%
Cornering70%
Daily Riding5%
Touring5%
Passenger0%

Rider Profile

Best ForThis is a children's minibike designed for young, beginner riders learning motocross fundamentals under supervision, not for adults or experienced riders seeking performance.
PurposeBuilt purely for small-statured youth to practice off-road cornering, throttle control, and basic motocross skills in a controlled, low-speed environment.
Rider FitIts tiny 10-inch wheels, 607mm seat height, and 36.7kg weight mean it suits only children or very small, lightweight riders physically.
CharacterA 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 ForThis is not suitable for adult riders, road use, passengers, or anyone expecting meaningful speed or long-distance comfort.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Reviews

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