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Maytech MTI120157 Inrunner Brushless Powerful Engine for Esurf/Jetski/Hydrofoil/RC Boat
Maytech MTI120157 Inrunner Brushless Powerful Engine for Esurf/Jetski/Hydrofoil/RC Boat
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Maytech MTI120157 Inrunner Brushless Powerful Engine for Esurf/Efoil/Hydropfoil/RC Boat MTI120157
Specifications:
Model No. | MTI120157-90-SF | Idle Current | 1.6A/22V |
Internal Resistance | 0.0322Ω | Max Current | 150A |
Input Volt | 85V | Max Output Watt | 12KW |
Max Pull | 15 N.m | Motor Weight | 6500g |
Motor Size | 120x157mm | Shaft | 12mm |
Notification before Place Order:
This motor is not in stock, it takes about 3-4 months production time after your order confirmed.
And this motor is not waterproof.
Application: Electric surfboard, efoil, electric power tools, hydrofoil board, waterboard, RC Boat, etc.,
Dimension:
Warning:
Flier ESCs are not compatible to all Maytech motors, recommend to use our 300A ESC as following recommend products.
Related Products: (Clicking the following pictures to check specs)
1. Maytech Fully Waterproof Efoil/Esurf/Boat Kit with Inrunner Motor+MTSKR1905WF+300A ESC
2. Maytech MTSKR1905WF IP67 Waterproof V2 Remote:
3. Maytech MTI65162 Fully Waterproof Motor:
4. Maytech Non-waterproof 300A ESC
5. Maytech MTI120116 Motor Fully Waterproof or Water-cooling:
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In Stock Maytech Fully Waterproof Efoil Motor MTI65162 120 Brushless Inrunner Motor
Maytech Fully Waterproof Efoil Motor MTI65162 100/120/190KV Brushless Inrunner Motor for Electric Surfboard/Efoil/Jetski/Esk8
Specification:
Model No. | MTI65162-120-SF |
KV | 100, 120, if you want other KV, contact agnes@maytech.cn |
Max Current | 300A |
Input Voltage | 6-24S Lipo (25-100V) |
Max Output Voltage | 9KW |
Shaft | Screw Shaft |
Hall Sensor | Without |
Motor Pole Number | 6 |
Waterproof Rank | IP68 Waterproof |
Customize | KV, logo, shaft, cable, connector, etc., contact Email: agnes@maytech.cn |
Customer Test Video on Efoil:
Maytech Self Testing: MTI65162-100-SF+MTSP0504 Prop+300A ESC+1905WF Remote:

In Stock Maytech Fully Waterproof MTI120116 18.8KW Powerful Brushless Inrunner Motor for Electric Surfboard/RC Boat/Jetski
Maytech Fully Waterproof MTI120116 18.8KW Powerful Brushless Inrunner Motor for Electric Surfboard/RC Boat/Jetski Multiple Versions
Specification:
Model No. | MTI120116 |
Options | IP68 Waterproof / Watercooled / Sensorless / Sensored, choose the one you want, sensorless is normally in stock, sensored version is not stock item, if you need urgently, contact agnes@maytech.cn to check stock first before place order |
KV | 100/200, can customize, contact us |
Max Current | 380A |
Input Voltage | 6-20S Lipo (25-84V) for 100KV, 6-20S Lipo (25-50V) for 200KV |
Max Output Voltage | 18.8KW |
Shaft | Keyway Shaft |
Hall Sensor | With |
Motor Pole Number | 10 |
Customize | KV, logo, shaft, cable, connector, etc., contact Email: agnes@maytech.cn |
Appliacation | Electric surfboard, boat, jetsurf, jetboard, watercraft, jetski, electric outboard, etc., |
Different application for Sensored and Sensorless Version:
To meet different customers requirements, we designed one version with hall sensor, one version without hall sensor.
Sensored version can not only be used underwater but also can be used on electric skateboard, fighting robots, electric cars, etc.,
Sensorless version usually use for underwater electric vehicles, electric surfboard, Efoil, hydrofoil, rc boat, water jet propulsion, etc.,
Application:
Electric surfboard/Efoil/Hydrofoil/jetski/jetboard/waterboard/water jet propulsion/surffoil/foilsurf/foilboards/rc boat, foil boat, foiling boat, hydrofoil boat, hydrofoiling boat, rescue boat, metal cutting machine, drilling and wrenching machines for rails, etc.,



Stock Notice before Place Order:
The motor stock is limited, please confirm order asap.
And if you need very urgently, please contact us agnes@maytech.cn to check stock first, if in stock, shipping time is about 1-2 days after order confirmed.
If not in stock, production time 30-50 days after order confirmed.
About Fully Waterproof Version:
We Upgraded Waterproof Performance from Oil-sealed to Water-sealed, which has better waterproof performance and can extend motor lifespan.
Esurf Kit Test: MTI120116-200-WP+MTSF300A-OPTO-WP+MTSKR1905WF

In Stock Maytech IP67 Waterproof Remote MTSKR1905WF Controller for Esk8/ Esurf/ Efoil
Specification:
Model No | MTSKR1905WF (V2), upgraded waterproof and signal strength |
Waterproof Rank | IP67 with 2 layers nanometers coating |
Control Mode | Esk8/ Esurf |
Signal Format | Support Standard PWM (PPM) and UART, output range from 10%-20%, which correspond to ESC/VESCTOOL Compatible controller throttle output range from 0%-100%. |
PWM Signal Output Range | 1ms-2ms for throttle no brake in Esurf mode; 1.5ms-2ms for throttle, 1.5ms-1ms for brake in Esk8 mode. |
Double Source Power Supply | Accept 5V power by ESC built-in BEC or extra 5V power |
Output Signal | Max 3.3V |
Display |
Remote and battery power, signal strength, throttle and brake percentage, RPM; speed, mileage; Current, voltage, temp when work with VESC |
Control Pump | Yes (Relay Switch) |
Control Light | Yes (Transistor Switch) |
Safety Button | Support |
Cruise Control | With in Esurf Mode |
Brake | With in Esk8 Mode |
Wireless Charging | Yes |
Package Includes | Transmitter, receiver, charging Pad, receiver, wristband, 3pcs dupont cable |
Compatible Controllers | VESC/ Focbox/ Other PWM ESCs that has same signal output range with the remote. |
Application | foil assist system, electric propulsion, underwater thruster, electric outboard, Esurf, Efoil, electric hydrofoil, electric surfboard, electric skateboard/ elongboard/ mountainboard, electric paraglider, etc., |
Features:
1. Display speed (km/h or mph) in Esk8 mode (for electric skateboard)2. Display voltage in V, current, temperature when work with VESC based controller
> Get Manual: Remote Manual and Instruction
Click Here: How to Display Volt, Current, RPM with TX and RX?


The remote has 2 Modes, signal output pulse width is different in 2 modes:
- Esurf Mode is 1ms-2ms, no stop no brake, if you use Esurf mode to work with VESCTOOL compatible controller, please use below settings in VESCTOOL and to match with the remote:
PPM Control Type: Current no reverse
PPM Mapping: Pulselength Start: 1.1ms; Pulselength End: 1.9ms; Pulselength Center: 1.5ms
Or you can use wizard mode to detect compatible value.
- Esk8 Mode is 1.5ms-1ms (Brake), 1.5ms-2ms (Speed up), 1.5ms is stop position.
Please noted to match compatible parameters for different modes in VESC_TOOL.


Tips After Using:




Maytech 45KW Powerful Motor 155245 70KV for Electric Boat Efoil Boat Sensorless
Maytech 45KW Powerful Motor 155245 70KV for Electric Boat Efoil Boat Sensorless Engine
Specification:
Model No. | MTI155245 | Idle Current | 3.5A |
KV | 70, contact us if you need other KV | Max Current | 670A |
Input Volt | 4-21S Lipo (17-90V) | Max Output Watt | 45KW |
Max Touque @60% | 73 N.m | Motor Weight | About 16.5kg |
Max RPM | 6350 | Construction | 12N/10P |
Max Working Temperature | 120℃ | Insulation Volt & Leak Current | AC500V/10MA/3S |
Plug | 10mm gold-plated plug | Lead Wires Extension | 2AWG |
Motor Type | Waterproof and watercooled optional | Application | Electric boat, efoil boat, electric car, motorcycle, etc., |
Hall Sensor | Without | Temp Sensor | With |
Application:
Electric boat, foil boat, foiling boat, hydrofoil boat, hydrofoiling boat, efoil boat, etc.,


Stock Notice before Place Order:
The motor is not stock item, above test datasheet is based on 70KV 50V, if you want other KV, please contact us for the KV you want.
Lead time for the motor production is about 3 months after your order confirmed.
And if you need very urgently, please contact us agnes@maytech.cn.
Production Line Real Shot:
Related Products:

Waterproof Efoil Kit: 65162 Motor+300A Waterproof ESC+MTSKR1905WF Remote
1. MTSF300A-WP ESC Upgrade Version:
Model No. | MTSF300A-WP |
Cont Current | 300A |
Peak Current | 1000A |
Watercooling | With |
Waterproof Rank | IP68 |
Input Voltage | 6-14S Lipo (25-58.8V) |
Case Material | Aluminum alloy |
Signal Format | PWM, 1ms-2ms |
Connector | 8.0mm female gold-plated bullet connector on 3 motor cables, on battery side without connector. With waterproof protector for connectors |
Features:
- Built in 75V to 5V and 75V to 12V UBEC DC-DC Module, 5V output is for receiver power supply, 12V output is for light and water pump, or other use.
- With waterproof junction box, all functions lead out and with pins in the box, and if you work with Maytech MTSKR1905WF remote, its receiver can be put inside of the box and directly plug in, easier to use.
- Both IP68 waterproof and watercooled, which means 2 cooling ways:


2. MTI65162 Inrunner Waterproof Motor
Model No. | MTI65162-120-SF |
KV | 120, if you want other KV, contact agnes@maytech.cn |
Shaft | Screw Shaft |
Input Voltage | 6-14S Lipo (25V-58.8V) |
Waterproof Rank | 300A |
Max Current | 6-14S Lipo (25-58.8V) |
Max Output Power | 9KW |
Pole Number | 6 poles |
Max Torque | 10N.m |
Connector | 8.0mm male gold-plated bullet connector |
Hall Sensor | Without |
Propeller | Optional for 120KV |
Customize | KV, logo, shaft, cable, connector, cover, case, etc., contact agnes@maytech.cn |



3. Remote: MTSKR1905WF IP67 Waterproof Remote for Esurf, with PWM & UART Receiver
Model No | MTSKR1905WF (V2), upgraded waterproof and signal strength |
Waterproof Rank | IP67 with 2 layers nanometers coating |
Control Mode | Esk8/ Esurf |
Signal Format | Support Standard PWM (PPM) and UART, output range from 10%-20%, which correspond to ESC/VESCTOOL Compatible controller throttle output range from 0%-100%. |
PWM Signal Output Range | 1ms-2ms for throttle no brake in Esurf mode; 1.5ms-2ms for throttle, 1.5ms-1ms for brake in Esk8 mode. |
Double Source Power Supply | Accept 5V power by ESC built-in BEC or extra 5V power |
Output Signal | Max 3.3V |
Display |
Remote and battery power, signal strength, throttle and brake percentage, RPM; speed, mileage; Current, voltage, temp when work with VESC |
Control Pump | Yes (Relay Switch) |
Control Light | Yes (Transistor Switch) |
Safety Button | Support |
Cruise Control | With in Esurf Mode |
Brake | With in Esk8 Mode |
Wireless Charging | Yes |
Package Includes | Transmitter, receiver, charging Pad, receiver, wristband, 3pcs dupont cable |
Compatible Controllers | VESC/ Focbox/ Other PWM ESCs that has same signal output range with the remote. |
Application | foil assist system, electric propulsion, underwater thruster, electric outboard, Esurf, Efoil, electric hydrofoil, electric surfboard, electric skateboard/ elongboard/ mountainboard, electric paraglider, etc., |



In Stock Maytech Watercooled 85165 Sensorless Motor 10.5KW Brushless DC Engine for Esurf/ Efoil
Specification:
Model No. | MTI85165-200-SF |
KV | 200, if you want other KV, contact agnes@maytech.cn |
Max Current | 300A |
Input Voltage | 6-12S Lipo (25-50V) for 200KV, 6-16S Lipo (25-67V) for 150KV |
Max Output Voltage | 10.5KW |
Shaft | Screw Shaft, other shaft can be customized, contact us |
Hall Sensor | Without, if you want hall sensor, contact agnes@maytech.cn |
Motor Pole Number | 10 |
Waterproof Rank | Not waterproof, watercooled version, can't work underwater directly |
Customize | KV, logo, shaft, cable, connector, etc., contact Email: agnes@maytech.cn |



