“Works great on my ebike. The rack that came with the bike did not have a place to mount this so I made a rectangular adjunct out of aluminum angle stock and attached the mount to the aluminum. Works and looks great.”
“I have one on a pannier rack (as intended) but used a couple to mount the Fly 6 on the back of saddle bags. This is on mountain bikes where (because I'm short) there isn't enough seat post for a saddle bag + the seat post mount (my hardtail) or where I use a dropper post (my full suspension bike).
I just pierced the saddle bag 'lid' and bolted the fitting through the fabric, it works really well.”