The issue created while cycling on a wheel on trainer is caused by all the moving and rotating parts. The faster is goes, the more sound it creates. There are a few key factors that play a role in this.
In case of clicking sound on the Antares / Galaxia you need a new T1004 roller. You can order the T1004 via our Tacx dealers: https://tacx.com/where-to-buy/
When the trainer is still in warranty, then please contact the dealer from where you’ve purchased the Antares / Galaxia to get this repaired.