Tekin RS Gen3 SPEC Sensored Brushless ESC

$67.99 - Tekin Hotwire 3.0 Bluetooth USB Interface (addon details...)
$31.99 - Tekin Hotwire 2.0 USB Interface (addon details...)
Low Price: $129.99
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The Tekin RS Gen3 SPEC Sensored Brushless ESC is designed for SPEC racing and offers professional performance at an affordable price. Packed with the latest hardware and HotWire programmable features like Data Logging, the RS SPEC gives you the tools and control you need to win. True ROAR SPEC mode with no timing or boost features with easily identifiable "blinky mode" LEDs. Rated for 13.5T and higher 540-size brushless motors, the RS SPEC is the ultimate in SPEC racing performance!

  • QuickTune™ One Touch Programming
  • New HD Solder Post Design
  • 3rd Channel Input for On-The-Fly Drag Brake Adjustments
  • Adjustable Torque Control *
  • Adjustable Throttle and Brake Frequencies *
  • High Voltage Programmable BEC *
  • HotWire™ Programming Port *
  • Data Logging Capability *
  • Sensor Checker
  • On-Board Temperature Indicator
  • ESC Self Diagnostics with Error Codes
  • Fully Proportional Forward/Brake/Reverse
  • Brushless and Brushed Motor Drive
  • Sensored or Sensorless Operation
  • LiPo Safe with Custom Voltage Cutoffs
  • Sensor Plug for Precise Commutation
  • Lightweight Chassis Design
  • HDAC: High Density Copper PCB's
  • Ultra-smooth and Precise Throttle and Braking Control

*NOTE: requires HotWire™ sold separately. 


Controls: Forward/Brake/Reverse
Input Voltage: 2S LiPo / 4-7S NiMH-NiCD
Motor Limit Brushless Mode: 2S - 13.5T 2-pole 36mm Can
Motor Limit Brushed Mode: 2S - 20 Turn 36mm Can
Max Current: 70amps per phase*
BEC: 6.0v @ 3.7amps
Dimensions: 1.0 x 1.3 x .51" / 24.5 x 34 x 12.9mm
Weight: .80oz / 22.5g

This product was added to our catalog on May 6, 2019

Verified Owner
Wednesday, Oct 30 2019 (5 months ago)
Tekin RS Gen3 SPEC Sensored Brushless ESC
I bought 2 for 2 stock buggies, 17.5 2wd buggy and 13.5 4wd buggy. I am having problems with both.

The 2wd acts like there's no sensor wire, it's so bad I had to be push started to get the buggy going. I used 2 brand new sensor wires, same crappy results. Seemed ok once moving, possibly slightly down on power. 2nd it my Andorid Hotwire app refuses to program it. I updated the ESC via the PC Hotwire app and was able to program it from the PC version. But when I got to the track and tried my Android Hotire again, it said the same thing, incompatible version.

Regarding the 13.5 4wd buggy, this ESC is not intended to be used. I could barely run half of a heat and apparently the ESC was thermalling. At the time of this writing, A-main is not advertising this ESC is NOT intended for 13.5 4wd buggies, as it is listed on Tekin's website (just checked). Tekin's website states it's for 17.5 offroad only, and up to 13.5 touring cars. At least this one connnects to my Android Hotwire, but there is no low voltage cutoff setting, and there is no motor temp setting as initially I thought one of those two may have been the issue. Even this one exhibited some standing start issues... like delyaed a seond (tried 2 NEW sensor wires with this one too).
Verified Owner
Monday, Oct 21 2019 (5 months ago)
Tekin RS Gen3 SPEC Sensored Brushless ESC
Excellent ESC. Simple programming, lightweight, smooth power delivery and braking.
Verified Owner
Monday, Aug 19 2019 (7 months ago)
Tekin RS Gen3 SPEC Sensored Brushless ESC
This esc is beautiful Silky feeling!! berryberry Good!!