Skip to main content

2021 CX50SRX FWE // lighter, thinner, faster, new frame, twin radiators, aluminum subframe, more torque, more power, more over-rev, more race wins, more championships…

The Factory Works Edition CX50SRx is just that. Clad with more power, Titanium and Billet Aluminum bits, and high end graphic treatment, this machine is made to transport its rider to the winner’s circle.
24
Loretta Lynn Championships
300
All US & International Championships
500
Regional Championships
5000
Local Races Won
  • ‘War Head’ Cylinder – Once again, the CX50 Factory Works Edition maintains its place at the bleeding edge of 50cc racing technology. The result is a broad torque curve that provides sooner and smoother clutch engagement for better starts, improved throttle control, and faster acceleration.
  • Forged and Anodized Aircraft-Grade Aluminum Wheels. Lighter and stronger featuring a spoke pattern designed to reduce unsprung weight and improve handling. 12” front and 10” 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.
  • Hybrid Oval twin spar/Backbone frame with revised structure and removable aluminum subframereduces weight, improves handling, permits a twin radiator system, eases maintenance, and is stronger.
  • Twin Radiator System – Improves cooling, reduces power loss to heat, and increases ground clearance.
  • CARD Rear Shock has revised valving and reservoir design that tucks in tight creating a slim mid-section.
  • Quick change Air Filter with vertical orientation reduces the chance dirt encroachment into the engine.
  • Air Boot/Air Box provides a large volume of clean air between the filter and the carburetor resulting in more power everywhere.
  • 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.
  • Updated CARD Rear Brake System: Improved bore, piston, and seal improves responsiveness and longevity.
  • Optimized Ergonomics provide a slimmer, flatter seat for easier fore-aft transitions and accommodation for a larger range of rider size.
  • Works-Style Tuned Pipe for increased power and a flatter torque curve. The result: earlier clutch engagement for improved rideability and more over-rev for enhanced top speed.
  • Ergonomic Hand Holds that make lifting the bike easier both at the starting gate and onto the stand.
  • Updated Chassis Geometry: Longer wheelbase for improved stability. Shorter swingarm for reduced rear-end kick over braking bumps. Increased rake provides both improved stability and smoother cornering. Lengthened head tube stiffens front end for enhanced steering feel.
  • 5Gx Freewheeling Clutch – Precision engagement, durable, freewheels for increased corner speed and easier starting.
  • Revolutionary MXT “Smart Leg” Front Fork – Cobra’s exclusive 32mm USD CARD fork is the finest fork in minicycle racing! The Smart architecture simultaneously provides supple action over small bumps, and progressive control through the biggest of hits…A feature especially important for minicycles that run on tracks torn up by bikes twice their size! This fork features fully adjustable rebound and compression damping and bottoming control adjustment not found on any other fork of any size!
  • Factory Works Edition GraphicsCreate the works look.
  • Titanium Edition! – Cobra is bringing works level goodies to the minicycle market! The 2023 FWE features super strong and lightweight Titanium axles and swingarm pivot. Additionally, we’ve included all Aluminum fastening hardware to the mix. Runs good! Looks good!
  • Factory-Style Traction Seat – Custom colors and ribbed for extra grip during hard acceleration.
  • Billet Aircraft Aluminum Chain Guide – Extra strength for powering through deep ruts.
  • Dunlop Geomax MX33 Intermediate-Terrain Tires – A high-end bike deserves high-end tires. The 2023 King is 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: $5,719 USD *Plus Shipping
  • Dry Weight: 88 lbs / 40 Kg
  • Engine: Cobra FWE Venom 50cc 2-stroke
  • Bore x Stroke: 39mm x 41.7mm
  • Induction: Case Reed V-Force® Reed Valve 19mm Carb
  • Cooling: Liquid-cooled Top-end and Case – Twin Radiator
  • Clutch: Cobra 5Gx Freewheeling 3-Shoe
  • Controls: Micro Bars (5/8”) Breakaway Forged Lever
  • Transmission: Single-speed auto
  • Exhaust: Works Style tuned pipe and silencer
  • Lubrication: Mixture lubrication – Spectro SX2
  • Fuel Capacity: .75 Gallons / 2.8L
  • Frame: Hybrid Oval/Backbone Twin Spar
  • Wheelbase: 1038mm
  • Seat Height: 680mm
  • Ground Clearance: 245mm
  • Front Brakes: CARD Hydraulic Disk (160mm)
  • Rear Brakes: CARD Hydraulic Disk (140mm)
  • Front Suspension: CARD Smart-Leg 32mm USD Fully Adjustable 210mm travel
  • Rear Suspension: CARD Fully Adjustable (High & Low Speed) 248mm travel
  • Wheel Front / Rear: Cobra 12″ Forged & Anodized / Cobra 10″ Forged & Anodized
  • Tires Front/Rear: Dunlop 2.5×12 Geomax MX33 / Dunlop 2.75×10 Geomax MX33