DM02 Mid Drive Motor
Torque Sensor / Cadence Sensor

Additional informations

① BB=68-73	DM02-500	DM02-350
       


  

    
Component Part 
    
Specification
    
Qty
   
BB=68
   
BB=73
  
  

    
Axle Screw
    
M8X1X15
    
2
    
√
    
√
  

    
Left Crank
    
170mm
    
1
    
√
    
√
  

 

    
Non-standard Nut
    
M33.5X1.5
    
1
    
√
    
√
  
 

    
Screw
    
See Column 4 or 5
    
2
    
M6X14
    
M6X20
  
 

    
Reinforced Plates
    

    
1
    
√
    
√
  
 

    
Lock washer
    
See Column 5
    
2
    
×
    
Φ6X5
  
  

    
Drive Unit
    
DM02-500 or DM02-350
    
1
    
√
    
√
  
  

    
Crankset
    
42T or 46T
    
1
    
√
    
√
  
  

    
Locknut
    
M42X1.5
    
1
    
√
    
√
  
    

    
Right Crank
    
170mm
    
1
    
√
    
√
  
   


② BB=100-110	DM02L-500	DM02L-350 
         


  

    
Component Part 
    
Specification
    
Qty
   
BB=68
   
BB=73
  
  

    
Axle Screw
    
M8X1X15
    
2
    
√
    
√
  

    
Left Crank
    
170mm
    
1
    
√
    
√
  

 

    
Non-standard Nut
    
M33.5X1.5
    
1
    
√
    
√
  
 

    
Screw
    
See Column 4 or 5
    
2
    
M6X45
    
M6X55
  
 

    
Reinforced Plates
    

    
1
    
√
    
√
  
 

    
Bushing
    
See Column 5
    
2
    
Φ6X32
    
Φ6X42
  
  

    
Drive Unit
    
DM02L-500 or DM02L-350
    
1
    
√
    
√
  
  

    
Crankset
    
46T
    
1
    
√
    
√
  
  

    
Locknut
    
M42X1.5
    
1
    
√
    
√
  
    

    
Right Crank
    
170mm
    
1
    
√
    
√
  
   

   ① BB=68   CL=50(or 59)  
         Model:   DM02-500     DM02-350



    


   ② BB=73   CL=52.5(or 61.5)  
         Model:    DM02-500     DM02-350

     

    ③ BB=100    CL=66(or 75)  
          Model:     DM02L-500      DM02L-350


    




    ④ BB=110    CL=71(or 80)  
          Model:     DM02L-500      DM02L-350

    

1) Installation Tool 

   ① Special wrench：
           
                 

   ② General tools：
            6mm  Allen wrench    
            8mm  Allen wrench
            5-8mm Slotted screwdriver
            3-5mm Phillips screwdriver
            Scissors


2) Cranket Mounting
   -  Tools： Special wrench

   -  Operation： Align the internal splines of the cranket 8 with the external 
      splines of the motor 7, press firmly to the end. Then tighten the lock nut  9, 
      counterclockwise with a special wrench with a tightening torque of 15Nm

   -  Diagram:
 
  

3) Motor Mounting

  -  Insert the mid-drive motor through bottom bracket from right side of the bicycle 
     frame and push it all the way
    
                   
   

    -   Reinforcement Plate Mounting
    -   Tools： 6mm Allen Wrench
    -   Components（see: factory configuration）：Reinforcement plate 6、M6 screw 5、 
            M6 screw 4（X2）、washer or bushing 6（X2）
    -	Requirement： Screw tightening torque 9-10Nm
    -	Diagram：

    - BB=68	

  

    - BB=73   washer specification  Φ6X5

 
  


    - BB=100  Bushing specification  Φ6X32	
    - BB=110  Bushing specification  Φ6X42
 

   

    ③  Non-standard nuts installation
    -	Tools： Special wrench
    -	Components（see: factory configuration）：non-standard nut 3
    -	Requirement： 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
    -	Diagram：

  


     ⑤  Crank Installation
        -	Tool： 8mm Allen wrench
        -	Components（see: factory configuration）：axle screw 1 （X2）、left 
                crank 2 、 right crank 10
        -  	Requirement: central axle screw locking torque is 35-40Nm
        -	Diagram：
 

  



4) Speed Sensor Installation
   ① Tool：  5-8mm flat-blade screwdriver	
     3-5mm Phillips screwdriver	
     Scissors

   ② Fasten the sensor to the frame flat fork with 2 cable ties, then install the 
     magnets onto 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


 5) Wiring

    ① Operation：
      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

5. Warranty: The warranty on the motor is valid for 24 months from the SN date of 
   production. This warranty does not mean that seller's products are not free from 
   damage or permanent use.

6. Compatibility: Due to different communication protocols, our motors can only be 
   used with the accompanying accessories we provide and are not compatible with 
   accessories from other brands.

                 ATTENTION:   WARRANTY VOID IF SEAL IS REMOVED