How to do the initial calibration?

For EDS TX series:

1. Set the front derailleur to the largest sprocket
2. Set the rear derailleur to the smallest cog position
3. Open the WHEELTOP App → Initial Calibration

Use "<" or ">" buttons to align the RD pulley with the smallest cog

Exit the initial calibration page

For EDS GeX and OX series: Same steps but skip step 1 (no FD adjustment required).