Gaui X4 II 500 Electric Super Combo Flybarless Helicopter Kit w/ESC, Motor, Servos & CF Blades

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This is the Gaui X4 II 500 Electric Super Combo Flybarless Helicopter Kit, with included Carbon Fiber Main and Tail Blades, 910kV Brushless Motor, 66A Electronic Speed Control with SBEC, Guai Mini VBar Flybarless Contoller, one GS-518 Mini Coreless Tail Servo and three GS-511 Coreless MG Mini Cyclic Servos. This super combo package includes the same ESC and motor as the X5 for extreme power and performance.

The X4 II is the electric brother of the successful NX4. The design is strong, simple and shares many parts with the NX4; the entire head assembly, tail assembly, gears, servo mounts and landing gear are all shared. The canopy is very similar too, with only slight modifications to accommodate the motor. The X4 II also features a removable battery tray that can accommodate nearly any 6S LiPo battery; 2600mAh all the way up to a 5000mAh!


  • High precision CNC aluminum rotor head assembly for superior 3D performance
  • Precisely tuned servo block for various brand of servos
  • Redesigned Ultra-rigid CF frame assembly - 100% carbon fiber frame
  • Redesigned CCPM control system for precision accuracy to enhance hovering and 3D flight control
  • Factory configured CNC torque tube, tail boom assembly
  • Recessed mire CNC spindle seat effectively reduce installation error
  • One piece CNC open tail box for maximum gear protection
  • Redesigned lightweight push rod control
  • Extreme 3D performance with explosive power
  • Redesigned high-rigid lightweight brace
  • Streamlined FRP canopy
  • Removable battery tray

Length (w/canopy):
Main Blade Length:
Tail Blade Length: 70-77mm
Main Rotor Diameter: 970-1040mm
Tail Rotor Diameter: 210-222mm
Weight (approx.): 1780 (with electronics and no battery)
Gear Ratio: 6.67:1:4.07 (w/ 18t pinion)
Battery Bay: 6S 2200-5000mAh
Servos: "Mini"


  • X4 II 500 Kit
  • Carbon Fiber Main Blades
  • Carbon Fiber Tail Blades 
  • GM-601 Brushless Motor (1820W-910kV)
  • GE-603 66A ESC w/SBEC
  • Gaui Mini VBar Flybarless Controller
  • (3) GS-511 Coreless MG Mini Servo
  • (1) GS-518 Coreless MG Mini Servo 

Needed To Complete:

  • (1) 7+ Channel Radio System
  • (1) 6S LiPo Battery Pack (2600-5000mAh)
  • (1) Compatible Battery Charger

This product was added to our catalog on May 7, 2013.

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This item is discontinued and no longer available for purchase. You may want to search our site for a similar item.
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