Tekin RS Gen 3 Spec / 21.5T Gen 4 Spec-R System

 ROAR Spec Mode Only - No Timing Features
 New HD Solder Post Design
 3rd Channel Input for On-The-Fly Drag Brake Adjustments

 QuickTune™ One Touch Programming
 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

ON BOARD QuickTune™ PROGRAMMABLE FEATURES

 DB - Drag Brake (13 steps)

 BS - Brake Strength (13 steps)

 LM - Torque Limiter (7 steps)

 NW - Neutral Width (13 steps)

 TP - Throttle Profiles 5 Preset - 2 Custom*

 MT - Motor Type

Brushless Modes - FWD Only / FWD-REV / FWD-REV Delay / FWD-REV Delay REV Motor Direction

Brushed Modes - FWD Only / FWD-REV / FWD-REV Delay

 VC - Voltage Cutoff : 2S, 3S, Custom*

* requires HotWire™ sold separately.

HOTWIRE™ PROGRAMMABLE FEATURES

 Update ESC Firmware

 Create, Save, Load and Share Custom ESC Profiles

 Drag Brake (0-100 steps)

 Active Drag (ON/OFF)

 Brake Strength (0-100 steps)

 Brake Minimum (0-30 steps)

 Active Braking (0-6 steps)

 RPM Brake (0-10 steps)

 Brake Frequency (750hz - 12kHz)

 Throttle Minimum (0-30 steps)

 Throttle Frequency (2kHz - 12kHz)

 Torque Limiter (0-10 steps)

 Reverse Speed (0-100 steps)

 Reverse Delay (0-2seconds)

 Neutral Width (0-100 steps) 

 Push Control (0-100 steps) 

 Throttle Profiles 5 Preset - 2 Custom

 Dual Drive Mode

 Motor Type

Brushless Modes - FWD Only / FWD-REV / FWD-REV Delay / FWD-REV Delay REV Motor Direction

Brushed Modes - FWD Only / FWD-REV / FWD-REV Delay
 Reverse Motor Direction

 Voltage Cutoff - 2S, Custom Per Cell

 1S LiPo Mode