CX50 JR // The bike that changed the game…and continues to…
The Cobra CX50JR’s record remains firmly intact…With Kannon Zabojnik’s win in 2021, the Loretta Lynn’s championship run for this little machine was extended to 26 straight years.
24
Loretta Lynn's CX50 JR Championships
300
All US & International Championships
500
Regional Championships
5000
Local Races Won
- Venom Series Engine – This thing rips! Cobra engineers designed a ‘no-compromise’ torque curve featuring massive 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.
- Forged and Anodized Aircraft-Grade Aluminum Wheels. Lighter and stronger featuring a spoke pattern designed to reduce unsprung weight and improve handling. 10” front and rear.
- Micro Handlebars – Cobra is proud to offer 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.
- 5Gx Freewheeling Clutch – Precision engagement, durable, freewheels for increased corner speed and easier starting.
- Forged Aircraft Grade Aluminum Triple Clamps – 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, and for 2023 the cushioned steering stops are improved.
- 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.
- 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.
- Updated CARD Rear Brake System: Improved bore, piston, and seal improves responsiveness and longevity.
- Coil Mounting – The ignition coil is now moved further away from the engine to keep the critical electronic components cooler.
- Improved Air Box – A reshaped airbox opening allows easier installation of the air filter.
- Lightweight Fasteners – Several fasteners have been re-engineered from aircraft grade 7075-T6 Aluminium for even more weight savings.
- Dunlop Geomax MX33 Intermediate-Terrain Tires – A high-end bike deserves high-end tires. The 2023 JR and P3 are outfitted with Dunlop Geomax MX33s front and back. Enhanced grip, improved slide control, and a larger contact patch with the ground all add up to reduced lap times. No corners cut here!
- Spectro-Factory Fill – Cobra and Sprectro, two proud American companies with a long history in motocross, have teamed up to ensure that each Cobra model comes 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.
- MSRP: $4.599
- Dry Weight: 81 lbs / 36 kg
- Engine/Motor: 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
- Contols: Micro Bars (5/8”) Breakaway Forged Lever
- Transmission: Single-speed auto
- Exhaust: Tuned pipe and silencer
- Lubrication: Mixture lubrication– Spectro SX2
- Fuel Capacity: .70 Gallons / 2.6 L
- Frame: 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 2.5×10 Geomax MX33 / Dunlop 2.75×10 Geomax MX33