2017 Cobra CX50 JR


in stock



“Why Buy” a 2017 Cobra CX50 JR

  • Broad Torque Curve

    • Excellent low-end torque and over-rev!

      • No compromise power delivery

  • 5Gx 3-Shoe Clutch (5thGeneration)

    • No plates to warp, Precision, consistent operation

      • Hits as hard at the end of a moto as it does on Lap 1. Freewheels for faster cornering and easier starting.

  • USD 32mm Front

    • Mechanical spring for consistent operation. ‘Right Sized’ for a small chassis. Fully adjustable cartridge design.

      • Inspires confidence over rough terrain

  • Piggyback Canister Rear Shock

    • Compression (high & low speed) Adjustment

      • Tunable for the rider. No-Fade performance throughout the race

  • 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 breathing. Large pre-carburetor volume greatly improves throttle response

      • Power when you need it!

  • One-Piece Aluminum Wheels

    • Stronger, Lighter Wheels

      • Reduced maintenance, improved acceleration and traction over rough terrain.

  • Billet, Wide Footprint Triple Clamp

    • Spreads the clamp load out over a larger area of the fork upper tube

      • Improved 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

  • Adjustable, 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

    • Easy to maintain.

      • No need to remove bodywork or purchase special tools to change a plug or jet the carb!


2017 Cobra CX50 JR Highlights & Improvements

The littlest Cobras get a huge update for 2017. Not only do the little guys and gals get to benefit from Cobra’s Venom Series 50cc power plant, but they get an all-new frame and swingarm as well. Cobra mounted riders have won every 50cc Class 2 U.S. national championship since the CX50JR was introduced in 1997, and we intend to keep it that way! Check out what new and improved for 2017:

  • NEW!  Frame – Lighter weight and stronger for improved performance and durability.

  • NEW!  Swingarm – Redesigned lower shock mount adds strength and stiffness to provide a better ride over the rough stuff.

  • NEW!  Engine  – Both the P3 and JR receive Cobra’s new Venom Series 50cc powerplant for 2017. 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.

  • NEW!  Top Chain Guide – Improved chain guidance and longer wearing design.

  • NEW!  Lightweight Wheels – Cobra has taken it’s lightweight and maintenance-free wheels to the next level. Lighter wheels mean less rotating and un-sprung mass, which translates into improved acceleration, handling, and flight control.

  • NEW!  Micro Handle Bars – Cobra is proud to announce the addition of 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.

  • NEW!  Bel-Ray Factory Fill – Cobra and Bel-Ray, two proud American companies with a long history in motocross, are teaming up this model year to ensure that each Cobra model comes from the factory with the finest in lubricants and chemicals. This includes everything from wheel bearing grease, to brake fluid, to suspension fluid, to the oil on the air filter.

  • 5Gx Freewheeling Clutch – Precision engagement, durable, freewheels for increased corner speed and easier starting.

  • Billet Triple Clamps with Adjustable Bar Mounts – Works level hardware on a junior scale bike!


2017 Cobra CX50 JR Specifications

MSRP // $3,998 USD *Plus Shipping
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 // Water cooled
Clutch // Cobra 5Gx Freewheeling 3-Shoe
Transmission // Single-speed auto
Exhaust // Tuned pipe and silencer
Lubrication // Mixture lubrication– Bel-Ray H1-R
Fuel Capacity // .70 Gallons / 2.6 L
Exhaust // Double Cradle 4130 ChrMo
Wheelbase // 908mm
Seat Height // 607mm
Ground Clearance //216mm
Front Brakes //Hydraulic Disk (160mm)
Rear Brakes // 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” Billet Hard Anodized – Cobra 10” Billet Hard Anodized
Tires Front / Rear // Dunlop 2.5×10 / 2.75×10 MX52F

2017 Cobra CX50 JR | 2017 Cobra JR | 2017 Cobra Moto JR

BIKES, Cobra CX50 JR

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