Originally Posted by
cccorlew
One is just fine. Search about this forum. I got in a an argument with a coworker who worried I was "riding unbalanced" with just one, I posted here, as did he. He's a great guy, but a know-it-all with a thin skin. He was eaten for lunch here by the commuter grumps and never returned. If you can find the thread, it's mildly amusing.
Anyway, my wife rides every day with one large Ortlieb. I go with 1 or 2 of my Details depending. You'll be fine.
I remember that thread it would be worth looking for. There wasn't much about balance that didn't get covered by us "commuter grumps"
in that thread.