Originally Posted by
weshigh
Thanks, Here are the photos of where it mounts. The movement doesn't really photograph well, but with that current setup, the rack wags back and forth like a tail, not much as said, 1/4-1/2 inch. and only when loaded. with the way my brake is located, it seems like all the racks I've seen would still have similar issues since the mounts are only on the outside of the seat stays.
I had a rack with similar mounting hardware and similar tail-wagging issues. It's a hallmark of a cheap and cheesy rack.
I've had three other racks--a Bontrager Back Rack Deluxe L, a Jandd Expedition, and a Tubus Cosmo. None of these higher-quality racks have the problem. I still own the Bontrager and the Tubus. They're like bridges.
And get another caliper. I had to do that on one of my bikes.