Onyx 1/10 4-Pole 4000Kv ESC & Motor Combo

Onyx 1/10 4-Pole 4000Kv ESC & Motor Combo

From Onyx RC:
Onyx brushless systems offer price sensitive enthusiasts the ultimate solution when searching for an easy and affordable method of stepping up to brushless power. Designed for most 1/10th scale on and off road electric vehicles, each system comes with everything users need to upgrade to brushless power. All systems include a potent 4-pole sensorless brushless motor and 70A waterproof ESC that comes pre-wired with a high-current EC3 connector. The ESC is Ni-MH and Li-Po/Li-Fe compatible and was designed to handle up to a 9 cell Ni-MH pack or 3S Li-Po/Li-Fe.

Onyx brushless systems are compatible with most 1/10th scale on and off-road electric vehicles including 1/10th scale ECX, Losi, ARRMA, HPI, Associated and many more.


  • 4-Pole design for increased torque and improved overall efficiency
  • Sensorless brushless technology for improved performance and maintenance free operation
  • Standard 1/8 in shaft
  • 3.5mm bullet style connectors
  • 4000Kv motor included
  • Waterproof ESC
  • Pre-wired with high-current EC3 connector and 3.5mm bullet style connectors
  • NiMH and Li-Po compatible
  • 70A can handle 4-9 cell NiMH or 2S-3S Li-Po
  • Built in Cooling fan
  • Easily programmable through integrated setup button
  • Compact design for easy fit into most any 1/10th scale on and off road platform


Adjustable Timing: No
Auto Cutoff: Yes
BEC: Yes
BEC Continous Current: 3A
BEC Type: Linear
BEC Voltage: 6V
Battery Connector: EC3
Bearings or Bushings: Two 5 Ã? 13 Ã? 4mm Bearings
Brakes: Yes
Efficiency: 90%
Forward: Yes
Idle Current (Io): 1.5 ± 0.5 @ 7.2V
Input Voltage: 4.8â??11.1V
Low-Voltage Cutoff Programmable: Yes
Maximum Burst Current: 290A
Maximum Continuous Current: 70A
Motor Connector: 3.5mm Bullet
Number of Poles: 4
Output: 290W
Overload Protection: Yes
RPM/Volt (Kv): 4000Kv
Reverse: Yes
Sensored: No
Shaft Diameter: 1/8 in
Shaft Length: 15mm
Size: 540
Type: Brushless, sensorless inrunner motor/70A waterproof ESC combo
Weight: 232g

#ONXS0501 – $74.99

Photo credit: AMain Hobbies
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Onyx 1/10 4-Pole 4000Kv ESC & Motor Combo

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Updated: August 19, 2019 — 10:39 AM

1 Comment

  1. Can you recommend a brushless power setup for a Traxxas Stampede. Motor, ESC, and receiver. I have an older Stampede that still uses crystals. It has been acting up. It will drice forward and then go ibto reverse on it’s own. I also recently noticed that the motor is starting to spark. Don’t think that’s normal.

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