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Replacing the torque sensor (S1 and T1)Updated 10 months ago

What You Need 

8mm Allen Key 
Bottom Bracket Wrench
1/2-inch Socket Wrench
16mm Wrench
Locking Tool
Crank Puller Tool
New Torque Sensor



Step 1

Flip the bicycle upside down with soft padding on the display.


 


Step 2

Take off the spiral cable wrap at the bottom part of the frame.

 


Step 3

Gently unplug the torque sensor connector. 


Step 4 

Use an 8mm Allen key to remove the left and right crank bolts.


 

Step 5 

1. Use 16mm wrench to thread the crank puller tool into the crank arm completely. 

 

2.  

Step 6

1. While holding the crank arm in place, turn the crank puller handle with the 1 6mm wrench clockwise until the crank arm is removed.

 

2.  

Step 7 

Unthread the crank puller and repeat the process for the opposite crank arm. 


*Note: This will be the same process as Step 4 - Step 6 but for the opposite crank arm. 


Step 8

1. Use a lockring tool with a socket wrench to remove the lockring nut at the chain ring. (Turn clockwise to loosen the lockring nut).

2.  


Step 9

Remove the chain ring and lockring nut. 


 

Step 10

1. Use the bottom bracket wrench to loosen the bearing cup(non-fixed) on the chain ring side while feeding the torque sensor cable out from the controller compartment. (Turn clockwise to loosen the bearing cup) (This bearing cup is attached to the torque sensor).


2.  


Step 11

Carefully remove the torque sensor out of the shell while feeding the torque sensor cable from the controller compartment.

 

Step 12

Use the bottom bracket wrench to remove the bearing cup (fixed) on the other side and install a new bearing cup. (This bearing cup does not attach to the torque sensor). 


 

Step 13

Feed the new torque sensor cable through the hole and carefully place the new torque sensor into the shell. 


Step 14

Use the bottom bracket wrench to tighten the bearing cup (non-fixed) on the chain ring side.

 

Step 15 

Install back the chain ring. 

 

Step 16

1. Use the lockring tool with a socket wrench to install the lockring nut.

 

2.   

Step 17 

Use an 8mm Allen key to install back both left and right crank bolts. 


Step 18 

Plug in the new torque sensor connector. 


Step 19

Place back the spiral cable wrap at the bottom part of the frame. 


Step 20

Flip back the bicycle to the normal upright position. 


Replacing the torque sensor (S1 and T1).pdf4.4MB


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