Cycles Galleria is now part of Trek Bicycle
https://www.trekbikes.com/au/en_AU/cycles-galleria/

and:

Trek Bicycle Melbourne Galleria
We've Merged with Trek Bicycle QV
https://www.trekbikes.com/au/en_AU/retail/Galleria/

So what's at E14/E15/385 Bourke St now?