The Kunray MY1030 mid-drive BLDC motor was developed as an upgraded platform based on the MY1020 series. Designed for applications such as electric off-road vehicles, go-karts, electric scooters, lightweight ATVs, mini electric motorcycles, mopeds, and DIY EV conversions, the MY1030 combines multiple power options with practical features for demanding outdoor applications.
One of its key differences is that temperature sensing is standard across the entire MY1030 range. The motor uses a KTY83-122 temperature sensor to provide temperature feedback to a compatible controller, helping users monitor motor temperature during high-load operation.
In this article, we will look at the main features of the MY1030, its available power versions, cooling and protection design, sprocket options, and what to consider when selecting a motor for your electric vehicle project.
The Kunray MY1030 is a brushless DC (BLDC) mid-drive motor designed for electric vehicle conversion and light electric vehicle applications.
It uses an aluminum housing with integrated cooling fins and an externally serviceable Hall sensor design. The motor is available in multiple voltage and power configurations, from 36V 1000W to 72V 3000W.
The current MY1030 range includes seven main power configurations:
| Motor Version | Rated Power | Peak Power | Rated Current | Rated Torque | Peak Torque | Rated Speed | Peak Speed |
|---|---|---|---|---|---|---|---|
| 36V 1000W | 1000W | 1500W | 28A | 3.2 N·m | 6 N·m | 3000 RPM | 5000 RPM |
| 48V 1000W | 1000W | 1500W | 20.8A | 3.2 N·m | 6 N·m | 3000 RPM | 5000 RPM |
| 48V 1600W | 1600W | 2500W | 33A | 4 N·m | 8.5 N·m | 3500 RPM | 6000 RPM |
| 48V 2000W | 2000W | 2800W | 42A | 5.4 N·m | 10 N·m | 4000 RPM | 6500 RPM |
| 60V 2000W | 2000W | 2800W | 33A | 5.4 N·m | 10 N·m | 4000 RPM | 6500 RPM |
| 60V 2500W | 2500W | 3000W | 42A | 6.2 N·m | 11 N·m | 4000 RPM | 6500 RPM |
| 72V 3000W | 3000W | 4000W | 55A | 6.8 N·m | 13.5 N·m | 4500 RPM | 7000 RPM |
This range allows users to select a motor according to their vehicle voltage, required power level, drivetrain configuration, and intended application.
One of the major upgrades of the MY1030 is its built-in temperature sensing system.
All MY1030 versions are equipped with a KTY83-122 temperature sensor. The sensor monitors motor temperature and provides a signal that can be read by a compatible controller.
For electric vehicles operating under heavy loads, such as long climbs, continuous riding, or high-current operation, monitoring motor temperature can be an important part of protecting the motor.
The exact temperature protection threshold and controller response depend on the controller configuration. Therefore, users should confirm that their controller supports the required temperature sensor input and protection function.
The MY1030 uses an all-aluminum housing with integrated cooling fins.
Instead of relying on an additional external cooling shell, the motor housing itself incorporates cooling fins to increase the available heat-dissipation area.
This design provides several practical advantages:
The motor uses natural air cooling, so installation should allow sufficient airflow around the housing.
The MY1030 uses an external Hall sensor structure. The Hall components are located inside the motor end cover, allowing them to be accessed after removing the end cover.
This makes inspection and replacement more convenient than designs where the Hall sensor is deeply integrated into the motor structure.
For DIY builders, repair shops, and distributors, easier Hall sensor maintenance can help reduce troubleshooting time and maintenance complexity.
The MY1030 uses three Hall signal channels and is designed around a 10-pole configuration.
The MY1030 features an upgraded sealing structure around the output shaft.
This design is intended to help reduce the intrusion of water and mud into the bearing area, making the motor more suitable for outdoor and off-road applications.
However, the motor is rated IP54, which means it is designed for dust protection and resistance to water splashes. IP54 does not mean that the motor is waterproof or suitable for immersion.
The motor should not be submerged or directly washed with a high-pressure water jet.
Different electric vehicles use different chain and drivetrain systems. To make the MY1030 easier to integrate into different projects, Kunray offers five official sprocket configurations:
The sprocket choice should always match the chain used by the vehicle.
The 25H and T8F sprockets use one output shaft configuration, while the #35 and 420 sprockets use another. These two shaft types should not be treated as interchangeable.
When ordering a MY1030, it is therefore important to confirm the required sprocket specification.
The MY1030 is designed as an upgraded version of the MY1020 platform.
The main improvements described in the current product documentation include:
| Feature | MY1020 | MY1030 |
|---|---|---|
| Cooling | External cooling shell can be used | Integrated aluminum cooling fins |
| Temperature Sensor | Optional on some versions | KTY83-122 standard |
| Hall Sensor | Internal | Externally serviceable |
| Output Shaft | Standard structure | Upgraded sealing structure |
| Brand Identification | No R logo | R logo on motor end |
| Overall Design | Previous-generation design | More integrated structure |
The purpose of these changes is not simply to increase rated power. The MY1030 focuses on making the motor easier to install, easier to maintain, and better suited to demanding outdoor applications.
There is no single MY1030 version that is best for every vehicle.
The correct choice depends on the vehicle's battery voltage, weight, drivetrain, controller configuration, wheel size, and intended use.
The 1000W versions are positioned as entry-level options for lighter electric vehicles and smaller conversion projects.
Potential applications include:
These versions provide a higher power level for mainstream electric vehicle conversions.
They may be suitable for applications such as:
The 60V versions are intended for more demanding applications where a higher-voltage power system is appropriate.
Typical applications include:
The 72V 3000W version is the highest-rated configuration in the current MY1030 range.
It provides:
It is positioned for higher-performance electric motorcycle, heavy-duty conversion, and racing-oriented applications.
Actual vehicle speed and hill-climbing capability depend on the complete vehicle system, including vehicle weight, wheel diameter, gearing, battery capability, and controller configuration.
Sprocket selection is another important consideration when installing a mid-drive motor.
For the same motor, changing the sprocket size changes the relationship between motor speed and wheel speed.
As a general drivetrain principle, a smaller motor sprocket provides stronger mechanical multiplication of torque and lower wheel speed, while a larger motor sprocket provides a higher potential wheel speed with less mechanical torque multiplication.
The MY1030 currently supports the following official options:
| Sprocket | Teeth | Chain | Shaft Type | Typical Application |
|---|---|---|---|---|
| 25H | 11T | #25 | A | Lightweight scooters and small go-karts |
| T8F | 11T | T8F | A | Small off-road vehicle conversions |
| #35 | 9T | #35 | B | Higher torque-oriented drivetrain |
| #35 | 11T | #35 | B | Higher-speed-oriented drivetrain |
| 420 | 8T | 420 | B | Motorcycle-grade / heavy-duty applications |
The chain, sprocket, and motor shaft must be correctly matched before installation.
The MY1030 is available in two mounting configurations:
This version is suitable when the vehicle frame already has compatible mounting points.
It can be useful for OEM applications and custom frames with existing motor mounting structures.
The bracket version is designed for vehicles where the motor needs to be secured through a bottom mounting bracket.
For DIY conversion projects, this option can simplify installation when the original frame does not provide suitable motor mounting holes.
Before purchasing, users should confirm the available frame space and mounting dimensions.
The MY1030 is designed for a variety of light electric vehicle applications.
The product documentation specifically lists applications including:
For a replacement or upgrade project, however, the motor should not be selected based only on the vehicle name.
Before ordering, check:
These checks can prevent many compatibility problems during installation.
A motor is only one part of an electric power system.
For example, the battery and controller must be appropriate for the selected motor version. The current MY1030 documentation specifies motor versions up to 55A rated current, so the complete electrical system must be designed accordingly.
The controller should also support the motor's Hall sensor signals. If the user wants to take advantage of the MY1030's temperature sensing system, the controller should provide an appropriate temperature sensor input and protection function.
One important compatibility note is that:
The MY1030 cannot be used with the S966 instrument according to the current product documentation.
This should be checked before building a complete vehicle configuration.
Before installation, always confirm that the motor voltage matches the battery voltage.
The MY1030 range includes 36V, 48V, 60V, and 72V versions. A motor should not be connected to a battery with a higher voltage than its specified rating.
Other important installation considerations include:
The MY1030 is rated IP54. It should not be submerged or cleaned using a high-pressure water jet.
The motor also uses an S9 duty classification, so continuous operation at extreme load should be avoided.
For DIY builders, distributors, and electric vehicle manufacturers, the motor selection process involves more than simply looking at the wattage printed on the label.
The MY1030 combines several practical features into one platform:
Multiple power options
From 36V 1000W to 72V 3000W, the range covers different vehicle sizes and performance requirements.
Standard temperature sensing
Every MY1030 version includes a KTY83-122 temperature sensor for temperature monitoring through a compatible controller.
Integrated cooling
The aluminum housing includes integrated cooling fins, providing a simple natural-air-cooling structure.
Serviceable Hall sensor
The external Hall sensor design makes inspection and replacement more accessible.
Flexible drivetrain options
Five official sprocket configurations are available for different chain systems.
Two mounting configurations
Choose between versions with and without a mounting bracket according to the vehicle frame.
Together, these features make the MY1030 a flexible platform for electric vehicle conversion and light EV applications.
The Kunray MY1030 is more than a higher-power replacement for the previous MY1020 platform. Its development focuses on several practical aspects of electric vehicle conversion: temperature monitoring, integrated cooling, serviceability, output shaft sealing, mounting flexibility, and drivetrain compatibility.
With seven power configurations from 36V 1000W to 72V 3000W, the MY1030 can be considered for a wide range of projects, from lightweight scooters and go-karts to mini motorcycles, ATVs, and higher-performance DIY electric vehicles.
The most important step is choosing the correct configuration for the complete vehicle system. Before ordering, confirm the voltage, power requirement, controller, chain and sprocket, mounting structure, and other drivetrain specifications.
If you are planning a MY1030 conversion and are not sure which version, sprocket, or mounting configuration is appropriate, provide your vehicle model, battery voltage, controller information, chain type, and intended application. These details can be used to determine the most suitable MY1030 configuration for your project.
