You can request samples on our ‘Contact Us’ page
Or if you want our DM01 or DM02 mid motors, click here to make the purchase through AliExpress.
Below you’ll find answers to commonly asked questions. If you still can’t find the answers you’re looking for, contact us!
You can request samples on our ‘Contact Us’ page
Or if you want our DM01 or DM02 mid motors, click here to make the purchase through AliExpress.
The DM series mid motors are designed for high compatibility. Our standard kits are compatible with the most common 68–73mm threaded bottom brackets on the market.
Furthermore, we offer specialized custom kits to cover wider applications:
This extensive support effectively covers nearly all mainstream mountain, commuter, and touring bicycles.
Absolutely. The DM motor is compatible with mainstream 8-speed through 12-speed drivetrains (including systems from Shimano, SRAM, and others).
To maximize protection for your chain and cassette, we strongly recommend that DM01 users use the Shift Sensor provided in our kit. This sensor ensures a smooth, non-damaging gear shift by momentarily and seamlessly cutting power the instant you change gears, which protects your drivetrain components.
Not at all. We are committed to simplifying the DIY process.
The DM mid motor kit features a modular design and includes all the necessary installation tools (including specialized wrenches) right in the box. By simply following our provided video tutorials and illustrated manuals, an experienced user can typically complete the installation in 1 to 2 hours.
The DM series is engineered to be one of the most powerful motors in its class.
The DM01 model delivers a peak torque of up to 160 Nm.
The DM02 model delivers a peak torque of up to 90 Nm.
This level of torque allows you to effortlessly conquer the steepest trails and climbs. You can choose between 750W or 1000W rated power versions, ensuring continuous, stable, and powerful assistance for everything from daily commuting to extreme off-roading.
The DM series utilizes Torque Sensor technology. This system intelligently and linearly increases power output based on your pedaling effort. What you’ll feel is a powerful extension of your own effort, rather than an abrupt pushing sensation, providing a more intuitive feeling much closer to riding a traditional bicycle than systems that use conventional speed sensors.
More importantly, our FOC algorithm has been finely optimized. Under low-speed, high-torque conditions, we precisely control the duration of peak current. This maintains a powerful sense of acceleration while avoiding unnecessary current surge. This not only delivers a more natural riding feel but also significantly reduces the thermal stress on the controller and MOSFETs, which vastly improves reliability.
We fully understand the importance of global regulations, and we address them as follows:
One of the greatest advantages of the DM motor is its high level of customization. You can easily adjust the PAS assist levels, speed limit directly through the display. This allows you to fully customize your riding experience based on the environment.
The DM01 motor is compatible with the most common battery systems on the market: 48V and 52V.
• 48V: Provides stable and highly efficient power delivery.
• 52V: Delivers a higher maximum assist speed and stronger acceleration (more “punch”).
Tip: Please ensure your battery uses high-quality cells and has a continuous discharge rating of at least 25A.
The DM02 motor is compatible with the most common battery systems on the market: 36V and 48V.
• 36V: The Optimal Choice
Peak Efficiency & Longevity: Motors are tuned for 36V, maximizing system reliability and lifespan.
Best Value: Results in a lighter, more cost-effective battery pack.
• 48V: Offers marginally higher top speed and acceleration.
Trade-off: Adds weight, cost, and unnecessary stress on components for this power class.
Recommendation: We recommend the 36V system for the best balance of efficiency, weight, and component longevity.
It is crucial not to turn on the motor while riding or with your feet on the pedals. Doing so may result in a lack of power or even complete power loss. We recommend turning on the motor before starting your ride.
The factory default torque setting is designed to operate in a “safe” mode. This means that when the motor is stationary, there will be no power output, even if you apply significant force to the pedals. This safety feature is implemented to prevent unintended acceleration or movement.
No, it is not recommended to use a 1000W 52V motor with a 60V battery. The motor is designed to operate at 52V, and using a higher voltage will damage it.
If you want to use a 60V battery with your e-bike, you will need to purchase a motor that is specifically designed for 60V operation.
Our DM mid-drive motor options for eBikes typically offer standard chainring sizes of 42T and 46T, maintaining a center distance CL tolerance of 0. We also provide alternative chainring sizes such as 34T, 38T, and 52T. These chainrings are flat and come with an approximate 9mm offset. Please note that using these alternative chainrings may require adjustments to your bicycle’s cassette to ensure proper compatibility.
To ensure compatibility with our eBike motors, it’s important that your chainring meets specific specifications, including a Bolt Circle Diameter (BCD) of 110mm.
Please ensure that your chosen chainring adheres to these requirements for optimal compatibility with our eBike motors.
We would like to provide you with important information regarding the PAS function of our DM mid-drive motor.
Please be advised that the PAS function of this motor cannot be deactivated or turned off. The PAS sensor is an integral part of the system and cannot be disabled independently.
For the torque operation of the motor to function correctly, the following conditions are necessary:
Both the Torque Sensor and the PAS Sensor must be activated simultaneously. These two components work in tandem to ensure the proper operation of the torque-based pedal assist system.
Hub motors have a simple design, resulting in extremely high durability and requiring almost zero routine maintenance. All critical components (such as the controller and coil windings) are housed within a sealed casing, providing effective protection against dust and water.
Replacing the entire hub motor is relatively straightforward; you only need to disconnect the power cable and swap the wheel. We offer comprehensive spare parts supply and technical support to ensure quick resolution of any issues.
Changing a tire requires disconnecting the motor power cable and removing the axle nuts. While slightly more complex than a standard bicycle, this is a standard procedure that most bike shops can handle.
Our brushless hub motors operate very quietly. We use high-quality gear materials and optimized controller algorithms to minimize mechanical noise; typically, you will only hear a slight hum during high-power output.
Hub motors provide direct propulsion from the rear wheel, offering a smooth and predictable sense of acceleration. The assistance is independent of your pedaling cadence, allowing you to get continuous power without changing your riding habits.
ToSeven’s eBike hub motors come in various power ratings, ranging from 250W to 2000W. The power rating determines the output of the motor, with higher ratings providing greater power assistance to the bike. Selecting the appropriate power rating depends on factors such as intended use, desired performance, and legal regulations governing eBike power limits in certain regions.
Our motors boast an IP65 Enclosure rating, signifying their “dust tight” designation and protection against water projected from a nozzle. They are engineered to be water-resistant, capable of withstanding light rain showers. However, they are not intended for prolonged exposure to water, high-pressure washing, or use on a motorized vehicle during adverse weather conditions. For optimal performance and longevity, it’s advised to avoid extended exposure to water or harsh weather situations.
Primarily, there are two main types of eBike hub motors: front hub motors and rear hub motors. Front hub motors are mounted within the front wheel hub, while rear hub motors are positioned within the rear wheel hub. These motors differ in their installation locations, impacting the balance, handling, and traction of the electric bike. Both types offer distinct advantages, and the choice between them often depends on factors such as riding preferences and specific eBike design considerations.
The speed capability of an eBike equipped with a hub motor is often determined by the motor’s power rating. Our ToSeven hub motors offer a maximum speed of up to 60 km/h, which is subject to the specific power rating of the motor. It’s important to adhere to local regulations and safety guidelines governing eBike speed limits, ensuring responsible and legal riding practices.
ToSeven’s eBike displays play a crucial role by offering riders immediate access to vital ride-related information. With real-time updates on battery status, speed, distance traveled, and remaining range, riders can effectively plan their trips, avoid running out of battery power mid-ride, and estimate their journey’s length before requiring a recharge.
If you encounter an error code displayed on your device, we recommend referring to the provided code list initially. Often, certain errors can be resolved by following the instructions outlined in the code list. These instructions are designed to provide simple solutions for common error occurrences.
ToSeven alloy rims are distinctive for their lightweight and corrosion-resistant construction, coupled with an integrated hub motor. This combination not only enhances handling due to the rim’s lightweight design but also ensures efficient power transfer through the hub motor, significantly boosting the overall performance of your e-bike. These rims represent a product that’s easy to maintain, improving the resilience and durability of your electric bike.
ToSeven’s alloy rims, paired with integrated hub motors, offer a dual advantage. The lightweight nature of the alloy rims enhances the eBike’s handling, while the integrated hub motor ensures efficient power transfer, thereby significantly elevating the bike’s performance. This combination not only improves the overall ride quality but also contributes to the e-bike’s resilience and ease of maintenance.
Yes, absolutely. We maintain a reliable and stable stock of all key spare parts, including the controller, various sensors, and the nylon gear.
You can easily purchase these components anytime directly through our official channels. Please contact our factory support team at support@to7motor.com or reach out to any of our authorized dealers to ensure your e-bike remains in peak condition for years to come.
Absolutely. We have a professional, multilingual technical support team (primarily operating in English) dedicated to assisting you.
You can reach us directly via email at support@to7motor.com or through our online chat box. We strive to provide you with expert troubleshooting guidance and effective solutions within 36 hours. Your satisfaction is always our highest priority.
Our motors are covered by a 12-month warranty.
The warranty period begins on the earlier of the following two dates:
Warranty Scope
Our warranty is a guarantee that you receive a product free from manufacturing defects and faults within the specified 12-month period.
Please note: This warranty does not cover damage resulting from misuse, improper installation, accidents, unauthorized modifications, or normal wear and tear. It does not imply that our products are immune to damage or intended for indefinite use.
To ensure optimal performance, future firmware updates for our motors will be readily accessible for download on our official factory website. Updating the motor’s firmware is a straightforward process; customers can conveniently access and install the updates using our dedicated update tool, which is available for separate purchase. This allows users to easily keep their motor up-to-date with the latest enhancements and improvements.
At ToSeven, our standard packing procedure involves carefully packaging the products in cartons. We prioritize secure packaging methods, ensuring all items are adequately protected within sturdy and suitable cartons to prevent damage during transit. We strive to ensure your order arrives safely and in pristine condition. Your satisfaction with our packaging is a priority, and we welcome discussions about any specific packaging requests you may have.
Absolutely! For sample inquiries, please get in touch with us at liying@to7motor.com.
Alternatively, you can fill in the form here to request for samples.
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