GE eBike III basic Series Service Manual page 52

6. Remove the complete saddle motor unit from the
ergometer.
7. Loose both TORX screws at the top
8. Push the saddle motor inside the saddle tube to allow
the cylindrical pin to be removed from the saddle
shaft.
9. Pull the saddle motor out of the saddle guide tube.
10. Follow the steps in reverse order to install the new
motor.
- 52 - eBike III basic / comfort 2018111-336 Rev. B