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1/10 4-Pole 4000kv Brushless Motor & 70Amp ESC Combo 2-3s Lipo, Pre Wire 3.5mm Motor plugs and EC3 Battery Plug

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Key Features

  • 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


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.


Adjustable Timing No
Auto Cutoff Yes
Battery Connector EC3
BEC Continous Current 3A
BEC Type Linear
BEC Voltage 6V
Brakes Yes
Bushing Or Bearing Bearing
Efficiency 90%
Forward Yes
Idle Current (Io) 1.5 ? 0.5 @ 7.2V
Input Voltage 4.8?11.1V
Low-Voltage Cutoff Programmable Yes
Maximum Burst Current 290A
Maximum Continuous Current 70A
Motor Connector 3.5mm Bullet
Motor Design Inrunner
Motor Type Brushless
Number of Poles 4
Output 290W
Overload Protection Yes
Product Weight 232g
Programmable Yes
Reverse Yes
RPM/Volt (Kv) 4000Kv
Shaft Diameter 1/8 in
Shaft Length 15mm