Minibikes
2018Cobra CX50 JR
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The 2018 Cobra CX50 JR is a lightweight beginner-friendly mini motorcycle designed for young riders and children learning to ride. Its compact dimensions, low 607mm seat height, and manageable kickstart operation make it accessible for novice riders. Known for its nimble handling and affordable entry-level performance, the CX50 JR excels in off-road and flat terrain riding.
- Capacity
- 50.0 ccm
- Engine
- Single, two-stroke
- Gearbox
- 1-speed
- Dry weight
- 36.0 kg
- Seat height
- 607 mm
- Power
- 5.4 HP (4.0 kW)
What’s new for the 2018 Cobra CX50 JR
vs the 2017| Spec | 2017 | 2018 |
|---|---|---|
| Dry weight | 36.7 kg (80.9 pounds) | 36.0 kg (79.4 pounds) |
| Front suspension | Marzocchi 32mm | CARD 30mm USD |
| Rear suspension | Öhlins Piggyback | CARD Adjustable Piggyback |
| Rear brakes | Expanding brake (drum brake) | Single disc |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- It's a pint-sized cross/minibike designed for motocross-style practice tracks and off-road play rather than any road use.
- Built for
- Playful, nimble, and toy-like in scale, yet fitted with genuinely serious adjustable suspension and disc brakes for real off-road performance.
- Not ideal for
- This is not suitable for adult riders, highway travel, passengers, or anyone seeking 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
- 50.0 ccm
- Power
- 5.4 HP (4.0 kW)
- Engine type
- Single, two-stroke
- Power/weight ratio
- 0.1500 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
- 36.0 kg
- Fuel capacity
- 2.60 litres
- Ground clearance
- 216 mm
Chassis & suspension
- Frame
- Double Cradle 4130 CrMo steel
- Front suspension
- CARD 30mm USD
- Rear suspension
- CARD Adjustable Piggyback
- Front wheel travel
- 170 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
- 60/100-10
- Rear tyre
- 70/100-10
Other
- Color options
- Yellow/red/gray
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 | 2009 | 2013 | 2017 | 2018 | 2020 | 2024 |
|---|---|---|---|---|---|---|
| Capacity | 50 cc | 50 cc | 50 cc | 50 cc | 50 cc | 50 cc |
| Dry weight | 37 kg | 37 kg | 37 kg | 36 kg | 37 kg | 37 kg |
| Seat height | 607 mm | 607 mm | 607 mm | 607 mm | 607 mm | 607 mm |
| Fuel capacity | — | 2.6 L | 2.6 L | 2.6 L | 2.6 L | 2.6 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 Cobra CX50 JR?
The 2018 Cobra CX50 JR has a Capacity of 50.0 ccm (3.05 cubic inches).
What engine power does the Cobra CX50 JR have?
The 2018 Cobra CX50 JR has a Power of 5.4 HP (4.0 kW).
How many gears does the Cobra CX50 JR have?
The 2018 Cobra CX50 JR has a Gearbox of 1-speed.
How much does the Cobra CX50 JR weigh?
The 2018 Cobra CX50 JR has a Dry weight of 36.0 kg (79.4 pounds).
Shop this bike
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The 2018 Cobra CX50 JR is an impressive motorcycle for young riders looking to get into the sport. With its air-cooled 50cc engine, this bike provides the perfect balance of power and control for beginners. The lightweight design and adjustable suspension make it easy for younger riders to handle, while the sturdy construction ensures durability on the track.
In addition to its performance, the 2018 Cobra CX50 JR also features a stylish design that will appeal to young riders. The unique graphics and sleek lines make this bike stand out on the track, while the comfortable seat and easy-to-use controls make it a joy to ride. Overall, the 2018 Cobra CX50 JR is a top choice for young riders looking for a high-quality, reliable motorcycle to begin their racing journey.
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