Curious what those without mounts do for their rear rack. Heard some negative things about seatpost mounted racks swaying side to side, sometimes requiring adjustment mid-ride. Also heard about some clamp systems for attaching regular racks without using screws.
So what do you prefer? I normally don't carry a lot:
But I may also use it for some light groceries. I have ruled out using a backpack longer than I have to, due to the back sweat situation.