Cobra CX50 JR 2022 NEW! Steering stop design with built-in cushion. NEW! Forged and anodized wheels made of aircraft-grade Aluminum. These wheels are lighter and stronger featuring an all-new spoke pattern resulting in reduced unsprung weight and improved handling. 10” front and 10” rear. NEW! Mega Flo Yellow Plastic

CX50 JR History

The Cobra CX50JR’s record remains firmly in tact…With Bode Bradford’s win in 2019, the Loretta Lynn’s championship run for this little machine was extended to 24 straight years.

“Why Buy” a 2021 Cobra CX50 JR

Broad Torque Curve
Excellent low-end torque and over-rev!
No compromise power delivery
Venom Series Engine –The P3 is powered by Cobra’s Venom Series 50cc powerplant. This thing rips! Cobra engineers designed a ‘no-compromise’ torque curve featuring massive amounts of low-end torque for launching off the gate and out of corners, this in addition to Cobra’s classic over-rev that provides that ‘2nd gear’ for wide open situations. This little beast offers more power, more torque, less weight and a smaller, lighter package.
5Gx Freewheeling Clutch
No plates to warp, Precision, consistent operation. Freewheeling design.
Hits as hard at the end of a moto as it does on Lap 1. No clutch drag when the throttle is chopped or during starting.
Precision engagement, durable, freewheels for increased corner speed and easier starting.
USD 32mm Front Fork
Mechanical spring for consistent operation. Improved fork action. ‘Right Sized’ for a small chassis.
Inspires confidence over rough terrain
REAL air filter
Air filter is mounted in airbox, not on top of air box. More surface area, More protection from dirt
Dirt or water that enters airbox cannot make its way into the engine. More power (especially in long motos and dusty off-road events)
Largest Air box in Class
IMPROVED! Air Box – A reshaped airbox opening allows easier installation of the air filter.
Improved breathing. Large pre-carburetor volume greatly improves throttle response
Power when you need it!
NEW! Forged and Anodized Wheels.
Made of aircraft-grade Aluminum. These wheels are lighter and stronger featuring an all-new spoke pattern resulting in reduced unsprung weight and improved handling. 10” front and 10” rear.
Forged Aircraft Grade Aluminum Triple Clamps
All of our 50cc models receive new clamps in 2019. These clamps are lighter, impart less force onto the fork tubes for improved suspension action, and they provide a clamping feature onto the steering stem for improved steering feel.
Spreads the clamp load out over a larger area of the fork upper tube
Improves fork action
Billet Chain Adjuster Blocks
Strongest in class
Never DNF from a slipping rear axle again!
Optimized chassis and bodywork
Longest travel suspension in its class by over an inch
Absorbs the pounding of rough terrain for better lap time and a less fatiguing ride.
Cobra Friction Drive
Allows some slip between the crank and rear wheel
Longer driveline life (crank, transmission, clutch, chain) and improved drive through rough choppy terrain
Progressive Rate Rear Suspension
Linear rising rate without a link! Reduced weight, and friction
Supple over small bumps for good traction…Absorbs big hits for aggressive riding.
Engine / Chassis Package
Frame Head Tube and Steering Stem – A thinner wall head tube and a 7075-T6 Aluminum steering stem work together to reduce weight and centralize mass.
Dunlop Geomax MX33 Intermediate-Terrain Tires – Dunlop is at it again. In 2019 they introduced the completely re-engineered Geomax MX33. Enhanced grip, improved slide control, and a larger contact patch with the ground all add up to reduced lap times. No corners cut here!
IMPROVED! Front Brakes – Further refinements on the CARD front brake system include a more powerful 9.5mm master cylinder piston, improved master cylinder bore finish for better brake feel, and a thinner, more ergonomic brake lever to better fit small hands.
IMPROVED! Coil Mounting – The ignition coil is now moved further away from the engine to keep the critical electronic components cooler.
IMPROVED! Lightweight Fasteners – Several fasteners have been re-engineered from aircraft grade 7075-T6 Aluminium for even more weight savings.
Micro Handle Bars – Cobra is proud to offer Pro-Taper’s innovative Micro Handlebars across our 50cc lineup. These bars will revolutionize the way that young riders control their motorcycles by offering a reduced diameter grip area that inspires confidence and reduced fatigue.
No need to remove bodywork or purchase special tools to change a plug or jet the carb!

“Why Buy” a 2021 Cobra CX50 JR

Broad Torque Curve
Excellent low-end torque and over-rev!
No compromise power delivery
Venom Series Engine –The P3 is powered by Cobra’s Venom Series 50cc powerplant. This thing rips! Cobra engineers designed a ‘no-compromise’ torque curve featuring massive amounts of low-end torque for launching off the gate and out of corners, this in addition to Cobra’s classic over-rev that provides that ‘2nd gear’ for wide open situations. This little beast offers more power, more torque, less weight and a smaller, lighter package.
5Gx Freewheeling Clutch
No plates to warp, Precision, consistent operation. Freewheeling design.
Hits as hard at the end of a moto as it does on Lap 1. No clutch drag when the throttle is chopped or during starting.
Precision engagement, durable, freewheels for increased corner speed and easier starting.
USD 32mm Front Fork
Mechanical spring for consistent operation. Improved fork action. ‘Right Sized’ for a small chassis.
Inspires confidence over rough terrain
REAL air filter
Air filter is mounted in airbox, not on top of air box. More surface area, More protection from dirt
Dirt or water that enters airbox cannot make its way into the engine. More power (especially in long motos and dusty off-road events)
Largest Air box in Class
IMPROVED! Air Box – A reshaped airbox opening allows easier installation of the air filter.
Improved breathing. Large pre-carburetor volume greatly improves throttle response
Power when you need it!
NEW! Forged and Anodized Wheels.
Made of aircraft-grade Aluminum. These wheels are lighter and stronger featuring an all-new spoke pattern resulting in reduced unsprung weight and improved handling. 10” front and 10” rear.
Forged Aircraft Grade Aluminum Triple Clamps
All of our 50cc models receive new clamps in 2019. These clamps are lighter, impart less force onto the fork tubes for improved suspension action, and they provide a clamping feature onto the steering stem for improved steering feel.
Spreads the clamp load out over a larger area of the fork upper tube
Improves fork action
Billet Chain Adjuster Blocks
Strongest in class
Never DNF from a slipping rear axle again!
Optimized chassis and bodywork
Longest travel suspension in its class by over an inch
Absorbs the pounding of rough terrain for better lap time and a less fatiguing ride.
Cobra Friction Drive
Allows some slip between the crank and rear wheel
Longer driveline life (crank, transmission, clutch, chain) and improved drive through rough choppy terrain
Progressive Rate Rear Suspension
Linear rising rate without a link! Reduced weight, and friction
Supple over small bumps for good traction…Absorbs big hits for aggressive riding.
Engine / Chassis Package
Frame Head Tube and Steering Stem – A thinner wall head tube and a 7075-T6 Aluminum steering stem work together to reduce weight and centralize mass.
Dunlop Geomax MX33 Intermediate-Terrain Tires – Dunlop is at it again. In 2019 they introduced the completely re-engineered Geomax MX33. Enhanced grip, improved slide control, and a larger contact patch with the ground all add up to reduced lap times. No corners cut here!
IMPROVED! Front Brakes – Further refinements on the CARD front brake system include a more powerful 9.5mm master cylinder piston, improved master cylinder bore finish for better brake feel, and a thinner, more ergonomic brake lever to better fit small hands.
IMPROVED! Coil Mounting – The ignition coil is now moved further away from the engine to keep the critical electronic components cooler.
IMPROVED! Lightweight Fasteners – Several fasteners have been re-engineered from aircraft grade 7075-T6 Aluminium for even more weight savings.
Micro Handle Bars – Cobra is proud to offer Pro-Taper’s innovative Micro Handlebars across our 50cc lineup. These bars will revolutionize the way that young riders control their motorcycles by offering a reduced diameter grip area that inspires confidence and reduced fatigue.
No need to remove bodywork or purchase special tools to change a plug or jet the carb!

Dry Weight // 81 lbs / 36 Kg Engine // Cobra Venom 50cc 2-stroke Bore x Stroke // 39mm x 41.7mm Induction / Case Reed V-Force® Reed Valve 14mm Carb Cooling // Liquid cooled Top-end and case Clutch // Cobra 5Gx Freewheeling 3-Shoe

Controls // Pro Taper Micro Bars (5/8″) / Break Forged levers Transmission // Single-speed auto Exhaust // Tuned pipe and silencer Lubrication // Mixture lubrication– Spectro Platinum SX2 Fuel Capacity // .70 Gallons / 2.6 L Exhaust // Double Cradle 4130 ChrMo Wheelbase // 908mm Seat Height // 607mm Ground Clearance //216mm Front Brakes // CARD Hydraulic Disk (160mm) Rear Brakes // CARD Hydraulic Disk (140mm) Front Suspension // CARD Smart-Leg 32mm USD Fully Adjustable 170mm travel Rear Suspension // CARD Adjustable Piggyback 170mm travel Wheel Front / Rear // Cobra 10” Forged & Anodized – Cobra 10” Forged & Anodized Tires Front / Rear // Dunlop 60/100-10 Geomax MX33 / Dunlop 70/100-10 Geomax MX33