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Steve Webb Models
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EMAX Simon Series 20A ESC


Many overlook the importance of the ESC. But if you prefer your motors to run with the smoothness, power and precision of a Mercedes, then you’d be wise to consider the superior qualities that catapult the Emax ESC above the rest of the field.

SUPERIOR PROGRAMMING – The Emax team of programmers spent 3 years perfecting their "smooth start" ESC. Utilizing the already high level SimonK firmware, Emax made improvement after improvement until they had created the best high performance speed controller available.

HIGHEST QUALITY COMPONENTS – Emax ESCs come with an American made (IR) MOSFET for a very stable current that leads to a long life. In addition, the PCB is made from thick 5-oz. high grade copper, helping to further increase the ESC longevity. Other components such as the capacitor and resistor also follow in the Emax tradition of exceptional quality.


  • Based on Simon K firmware, further optimzed to the perfect drive performance.
  • Low-voltager protection, over-heat protection and self-check functions.
  • Separate power supply for MCU and BEC, enhancing the ESCs ability to eliminate electromagnetic interference.
  • Parameters of the ESC can be set via a program card or transmitter.
  • Throttle range can be set to be compatible with different receivers.
  • Equipped with built-in linear BEC.
  • Max speed: 210000 rpm for 2-pole, 70000rpm for 6-pole, 35000 rpm for 12-pole


  • Continuous Current: 20A
  • Burst Current: 25A
  • Li-xx Battery (Cells): 2-3
  • Dimensions (LxWxH mm): 55x28x7
  • Weight (g) wires included: 28
  • BEC Mode: Linear
  • BEC Output: 2A/5V
  • Programmable: YES

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£11.99 Each

Out of stock.
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