Voltage Limit: 4200kV - 2S LiPo

                         3100kV - 3S LiPo

                         2300kV - 4S LiPo

                         1800kV - 4S LiPo

                         1200kV - 6S LiPo

                           500kV - 6S LiPo

Weight: 7.8oz / 221g

Shaft Dimensions: 5mm (.196") x 15.3mm

Motor Diameter: 35.85mm / 1.40"

Motor Length: 62.5mm / 2.5"
Max Operating Temperature: 180°F / 82°C
Max RPM: 65,000

Bearing Dimensions: Front: 5 x 14 x 5mm

                                     Rear: 5 x 11 x 5mm

Rotor Size: 18.5mm

Rebuildable: Yes
Mounting Pattern: M3 @ 25.4mm / 1"





1:10 4WD Trail Truck

1:10 4WD Rock Racer

1:10 Trophy Truck


Tekin's Element Proof ROC412 HD offers protection from the elements, giving you the power to take on the trails or track without fear of water, mud or snow! Designed for heavier trail or rock racing rigs, the ROC412 HD delivers more torque and more power on demand. The HD lineup offers the same trusted kV ratings so you can maintain desired speed and input voltage but the longer design offers more grunt when you need it. Using a 4-pole 12-slot motor design based off the award-winning T8 Series motors, the ROC412 HD harnesses the benefits of brushless efficiency and extreme amounts of torque to stay out on the trail longer with more power on tap. Couple the ROC412 HD with an RX4 Speed Control for the smoothest crawling system available! Crawling, Rock Racing precision, protection from the Elements and raw power are at your disposal!

Element Proof design tackles Water, Mud and Snow*

Crawler, Rock Race and Trail Rig Specific

HD 550 Design for more Power and Torque

4 Pole 12 Slot High Torque Motor Design

18.5mm Rotor provides superior Torque and Braking Power

CNC Machined 6061-T6 Billet Aluminum Heat Sink Can

Neodymium Sintered Magnets

Precision Engineered for Maximum Energy Conversion

High Purity Copper Windings Maximize Conductivity and Efficiency

Low Resistance, High Power Solder Tabs

Dual-Plug Sensor Wire Harness for all Sensored and Sensorless systems

Anodized End-bell plates maximize corrosion and wear resistance

High RPM ABEC-5 Precision Bearings

Oversized Front Bearing adds Durability

Rebuild-able Design


* Element Proof ESCs and Motors are specially designed to withstand water splashes and are not meant to be submerged. Included dielectric grease must be used on the sensor and fan port connections to protect them from shorting.


The ROC412 EP is not intended for operation while submerged in liquid.


Anytime your motor sees water it is important that you perform the proper after run maintenance. Warranty does not cover neglect, lack of maintenance, bearings, rust or any damage that may occur if the motor is submerged in water.


The ROC412 HD may share the name and design of a rock crawler motor, but it is capable of high speed bashing as well. Check out an 2300KV on 4S tearing it up in the snow in a PRO MT 4x4 monster truck!

The RX4 and ROC412HD power our 18.3lb custom Dakar Rally Truck!



TT2630 - ROC412 HD 4200kV

TT2631 - ROC412 HD 3100kV

TT2632 - ROC412 HD 2300kV

TT2633 - ROC412 HD 1800kV

TT2634 - ROC412 HD 1200kV

TT2635 - ROC412 HD 500kV




TT2640 - ROC412 HD Rebuild Kit:

End Caps / Bearings / Solder Tabs / Isolator / Hardware


TT2641 - ROC412 HD End Caps / Hardware

TT2643 - ROC412 HD Sensor PCB

TT2644 - ROC412 HD Solder Tabs / Isolator



TT2642 - ROC412 HD Bearing Set - Front: 5 x 14 x 5mm

                                                             Rear: 5 x 11 x 5mm






TT2616 - ROC412 HD  Rotor 5mm Shaft




TT3835 - FlatWire 100mm Ribbon Sensor Cable

TT3836 - FlatWire 150mm Ribbon Sensor Cable

TT3837 - FlatWire 200mm Ribbon Sensor Cable

TT3838 - FlexWire 100mm Sleeved Sensor Cable

TT3839 - FlexWire 150mm Sleeved Sensor Cable

TT3840 - FlexWire 200mm Sleeved Sensor Cable

TT3841 - FlexWire 275mm Sleeved Sensor Cable




TT3009 - FlexWire 12awg Pink 3ft

TT3012 - FlexWire 12awg Red 3ft

TT3013 - FlexWire 12awg Black 3ft

TT3014 - FlexWire 12awg White 3ft

TT3015 - FlexWire 12awg Red 50ft

TT3016 - FlexWire 12awg Black 50ft

TT3017 - FlexWire 12awg White 50ft

TT3018 - FlexWire 12awg Pink 50ft



TT1451 - HotWire 2.0
TT1452 - HotWire 3.0 BLE




We guarantee our motors to be free from manufacturer defects for 180 days from date of purchase. All items are tested in a controlled environment prior to the packaging process to ensure you receive a top quality Tekin product. We strive to provide the highest grade professional components possible and we appreciate and treat every Tekin user as part of our family. We are RC enthusiasts designing and manufacturing quality products to give our fellow RC enthusiasts the best hobby experience possible.


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