THE DM01 MID DRIVE MOTOR – EVERYTHING YOU NEED TO KNOW

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The DM01 Motor: Engineering Excellence for E-Bikes


1. Introduction to the DM01 Motor

In an era where the frontiers of creativity are ever-expanding, To7motor stands out as a beacon of advancement in the e-bike technology landscape.

Introducing the DM01 Mid-Drive Motor—the quintessence of e-bike ingenuity and performance. Boasting a formidable rated power of 750W & 1000W, this motor delivers a thrilling fusion of velocity and power, transforming each journey into an adrenaline-fueled adventure. A hefty torque of 160Nm launches you ahead with conviction, effortlessly surmounting inclines and accelerating with notable ease.

With an IP65 waterproof rating, the DM01 excels under any conditions, whether it’s amidst drenching rains or on sun-baked trails. Its compatibility with 48, 52, and 60-volt battery configurations allows for a smooth integration with diverse e-bike models, offering you the liberty to select the power system that aligns with your cycling preferences.

Designed with performance at its core, the motor hits a top speed of 160RPM, placing you well ahead of the competition. Built to last, it performs flawlessly in a broad temperature spectrum from -20°C to 50°C, guaranteeing dependability from icy dawns to the height of the midday heat.

The central position of the DM01 ensures perfect equilibrium and integration with the bike’s framework, enhancing the sensation of the bike being a natural extension of the rider. Advanced cadence and torque sensors provide a ride that feels instinctive, with power adjustments that are in tune with the intensity and tempo of your pedaling.

Able to accommodate chainrings from 34T to 54T, this motor is tailored to your individual riding demands, whether seeking speed or torque. Its ultra-quiet operation at under 50dB guarantees that your rides remain tranquil, letting you absorb either the tranquility of nature or the city’s ambiance.

At 5.8 & 6 kilograms, the motor’s weight reflects its robust construction while still preserving the nimbleness of the bike. The DM01 is more than just a motor—it’s the pulsating core of your e-bike adventure, propelling you with strength, precision, and intensity.

The DM01 adapts with ease, featuring a BB Axle designed to snugly fit sizes from the standard 68mm and 73mm to the expansive 100mm and 110mm, catering to a broad array of bike styles and certifying its role as the powerhouse of your riding experience.

With a Reduction Gear Ratio of 40.27:1, this motor is crafted for peerless efficiency, channeling your pedaling effort into potent motion while preserving a peaceful ride. The high gear ratio ensures a fluid start and continuous control, whether on challenging ascents or during swift rides.

The DM01’s design is as beautiful as it is functional, offering Shell Color options in Black or Silver for a customized look that can highlight or complement your bike’s appearance. These choices ensure the motor not only functions impressively but also enhances your bike’s look with a stroke of sophistication.

The DM01 is not merely a component—it’s a proclamation. It symbolizes a perfect union of power, versatility, and style—a definitive emblem of To7motor’s commitment to cycling superiority.

DM-01 Mid Drive Motor

THE DM01 Motor’s POWER 

Rated Power: 750W/1000W

Torque: 160Nm

Waterproof Rating: IP65

Compatible With 48, 52, 60 Volts Battery Range.

Max Speed: 160RPM

Operating Temperature: -20°C to 50°C

Mounting Position: Central

Shell Color: Black/Silver

Reduction Gear Ratio: 40.27:1

Sensor Style: Cadence/Torque Sensor

Chainring: 46T (or 34T/36T/38T/52T)

BB Axle: 68mm & 73mm – 100mm & 110mm

Noise Level: <50dB

Operating Temperature: -20℃ to 50℃

Motor Weight: 5.8kg/6Kg

 

2. DM01 VS DM01L: WHAT ARE THE DIFFERENCES?

What is DM01L, You may ask? Well, It’s still the same motor but with some differences, The main difference between the two is that, 
 
  • DM01’s Bottom Bracket is 68 & 73
  • DM01L’s Bottom Bracket is 100 & 110
 
These are the key differences to note between the two, if you do want to know more about this, don’t fret, We’ll cover this further down.

3. DM01/DM01L BOTTOM BRACKET SPECIFICATIONS AND DIMENSIONS FOR BB 68&73 & BB 100&110

Below, We will be showing you Detailed specifications for both BB 68&73 and BB 100&110. The first one will be for BB 68 & 73, And the second one will be for BB 100 & 110.  

We have provided images for both of them. Each of the parts are in the DM01 Explosion diagram below.

3.1.  DM01 BOTTOM BRACKET SPECIFICATIONS AND DIMENSIONS FOR BB 68 & 73

Shown Below:
 
  • The explosion diagram for the DM01(BB 68 & 73) mid drive motor. 
  • The Dimension for the DM01(BB 68 & 73) mid drive motor.
  • The specifications for BB 68 & 73
 
 
 
 
 
This is the DM01 EXPLOSION DIAGRAM FOR BB 68 & 73
 
 
dm01 Mid drive motor explosion diagram
 
 
 
These are the dimensions for DM01
 
 
BB=68 CL=50 (or 59) Model: DM01-1000/750                                     BB=73 CL=52.5 (OR 61.5) Model: DM01-1000/750      

dm01 mid drive motor diagram

dm01 mid drive motor explosion diagram

Component Part Specification Qty BB=68 BB=73
Axle Screw
M8X1X15
2
Left Crank
170mm
1
Decoration cap
-
1
Non-standard Nut
M33.5X1.5
1
Screw
See Column 4 or 5
2
M6X14
M6X20
Reinforced Plates
-
1
Drive Unit
DM01-1000 or DM01-750
1
Crankset
46T
1
Locknut
M42X1.5
1
Right Crank
170mm
1
Bushing
See Column 5
2
X
Φ6X5
 
3.2. DM01L BOTTOM BRACKET SPECIFICATIONS AND DIMENSIONS FOR BB 100 & 110 
 
 

Shown Below,

  • The explosion diagram for the DM01L(BB 100 & 110) mid drive motor.
  • The dimension for the DM01L(BB 100 & 110) mid drive motor
  • The specifications for BB 100 & 110 
 
 
 
 
 
This is the DM01L EXPLOSION DIAGRAM FOR BB 100 & 110
dm01L Mid drive motor explosion diagram
 
 
 
These are the dimensions for DM01-L
 
 
 
 
BB=100 CL=66 (or 75) Model: DM01L-1000/750                                    BB=110 CL=71 (OR 80) Model: DM01L-1000/750      

DM-01L mid drive motor diagram

DM-01L Mid Drive Motor Diagram

Component Part Specification Qty BB=100 BB=110
Axle Screw
M8X1X15
2
Left Crank
170mm
1
Decoration cap
-
1
X
Non-standard Nut
M33.5X1.5
1
Screw
See Column 4 or 5
2
M6X45
M6X55
Reinforced Plates
-
1
Drive Unit
DM01L-1000 or DM01L-750
1
Crankset
46T
1
Locknut
M42X1.5
1
Right Crank
170mm
1
Lock Washer
See Column 5
2
Φ6X32
Φ6X42

4. Design Philosophy and Durability

Dm01 Mid Drive Motor Explosion Diagram
The DM01 MId-Motor Explosion Diagram

Our DM01 Mid-Motor is not just built to perform; it’s designed to last. From its robust aluminum alloy construction to its IP65 rating against the elements, every aspect of the DM01 is the result of thoughtful design and sustainable engineering. 

Here are four features that demonstrate our commitment to superior design:

4.1. Better Heat Dissipation

The DM01 motor is engineered with enhanced heat dissipation capabilities. This means that it can maintain optimal temperatures even during intense operation. 

Cooler running conditions not only extend the motor’s lifespan by reducing wear and tear but also maintain efficiency and performance. 

Whether you’re climbing steep hills or navigating long distances, the DM01 ensures reliable and consistent power by effectively managing its thermal environment.

4.2. Dual-Clutch Mechanism

The dual-clutch mechanism in the DM01 motor is designed to offer minimal resistance when pedaling. This innovative feature means that even when the motor is not engaged, the bike feels smooth and easy to pedal, resembling the feel of a traditional bicycle. Crazy, Right?

This is particularly beneficial for riders who may want to use the bike without assistance or conserve battery power, ensuring a natural riding experience. 

The dual-clutch system thus ensures that efficiency and comfort are paramount, making every ride enjoyable, with or without motor engagement.

4.3. Seamless Integration with Standard Bike Frames

The DM01 motor is designed for seamless integration with approximately 95% of standard bike frames, ensuring a wide compatibility range. 

This feature is pretty significant, users who want to upgrade/change their existing bike or choose from a broad selection of new bikes. The Easy installation means less hassle and more time enjoying.

The motor’s adaptable design considers various frame geometries and styles, making it a versatile choice for different types of bicycles, from mountain bikes to city commuters. 

This commitment to compatibility reflects our understanding of the diverse needs and preferences of cyclists, ensuring that the transition to an e-bike is as smooth as possible.

4.4. Crafted from Robust Aluminum Alloys

The DM01 motor is crafted using robust aluminum alloys, a material choice that strikes an optimal balance between weight and durability. Aluminum alloys are known for their strength, corrosion resistance, and ability to dissipate heat efficiently. 

This material selection ensures that the motor can withstand the rigors of daily use, various weather conditions, and the physical demands of different riding styles, all while maintaining a lighter weight profile compared to other materials. 

By using high-quality aluminum alloys, We ensure that the DM01 motor is not only durable and reliable but also contributes to the overall performance and agility of the e-bike.


5. Installation Guide

 
JUST AS A NOTE: REMEMBER WHEN WE ADD NUMBERS IN-FRONT OF TOOLS, REFER TO THE IMAGES TO SEE WHAT WE ARE TALKING ABOUT, Example: (wrench 7), means that the image has a 7 pointing to the wrench.

5.1. STEP NUMBER 1: Tools and Preparation

Before beginning the installation process, ensure you have the following tools:

  • Specialized wrench
 
 
special wrench
 
 
General Tools:
 
  • 6mm Allen wrench
  • 8mm Allen wrench
 
 
 
 

5.2. CHAIN-RING Installation

TOOLS REQUIRED:

  • SPECIAL WRENCH
 
 

1. Align the internal splines of the chain-ring 8 with the external splines of Motor 7 

2. Press firmly till the end. Then tighten the lock-nut 9 Counter-Clockwise with the special wrench, with a tightening torque of 15Nm.

cranket mounting

5.3. step 1: MOUNTING THE MOTOR

Insert the Mid-Drive-Motor Through the Bottom Bracket from the right side of the bicycle frame and push it all the way.

mounting the mid drive motor

5.3. STEP 2: REINFORCING THE PLATE MOUNTING:

– TOOLS: 6MM ALLEN WRENCH

– COMPONENTS: (See: Factory Configuration) : Reinforcement plate 6,  M6 screw 5,  Washer or bushing 11

You must Screw, tightening the torque 9-10Nm.

We have some diagrams for each bottom bracket size below that can possibly guide you:

 

 

 

BB = 68:

 

bb type 1

 

 

BB = 73:

 

bb type 2

 

 

BB = 100:

 

bb type 3

 

 

BB = 110:

 

bb type 4

 

5.3. STEP 3: NON-STANDARD NUTS INSTALLATION:

– TOOLS: SPECIAL WRENCH
– Components: (see: factory configuration) : non-standard nut 4

BEFORE TIGHTENING THE NUT! 
 
Turn the motor clockwise until the motor is close to the lower tube of the frame and does not turn until it
stops, then use a special wrench to tighten the nut, torque is 45-50Nm when tightening

Non Standard Installation Step 3
 

5.3. STEP 4: DECORATION CAP INSTALLATION:

– COMPONENTS:(see: factory configuration):Decoration Cap 3
 

Turn the Decoration cap clockwise to the end by hand.

step 1 of decoration cap installation for the dm01 mid drive motor
 
 

5.3. STEP 5: CRANK INSTALLATION:

-TOOLS: 8MM ALLEN WRENCH
-COMPONENTS(see: factory configuration):axle screw 1、left crank 2、right crank 10


Central axle screw locking torque is 35-40Nm.

 

 
crank installation
 
 

5.4. Final Touches: speed sensor installation:

   ①  Fasten the sensor to the frame flat fork with 2 cable ties, then install the 
          magnets on the wheel spokes with a flat-blade screwdriver
   
      Notice:Make sure the magnetic field side of the magnet is aligned with the 
      circular mark on the sensor
 
   ②  Loosen the screws on the sensor with a Phillips screwdriver, then move the 
          receiver of the speed sensor, 
 
          to ensure that the distance between the circular 
          marking to the sensor surface and the magnet is from 2 to 10 mm, the tighten 
          the screw with a screwdriver to complete the installation
 
 
1-Sensor    2-Tie    3-Magnet    4-Screw    5-Receiver
 
 
 

first touches of speed sensor installation for the dm01 mid drive motor         speed sensor installation step 2

5.6. Wiring and Setup

① Operations:

      Insert the plugs on the bus cable, battery and speed sensor to the 

      corresponding plugs of the motor, the other end of the bus cable can be plugged into the 

      display, brake, throttle, etc.

    ② Precautions:

      Try not to pass all cables through the narrow space of the motor and bike frame,

      so as to avoid the cables being squeezed and damage

6. THE COMPATIBILITY OF THE INSTALLATION

Due to different communication protocols, Our motors can only be
used with the accessories we have provided and are NOT compatible with
accessories from other brands.

 

7. Warranty and Customer Care

To7motor provides a 24-month warranty from the date of manufacture, underscoring our commitment to quality and customer satisfaction. 

Please note that compatibility is key; the DM01 is designed to function seamlessly with To7motor-provided accessories.


8. Conclusion

With its potent combination of power, precision, and sustainability, the DM01 motor is the heart of the modern e-bike, engineered to elevate your riding experience to new heights.