I've got a thick-ass rack on my Aventon Aventure 2 (probably larger than 2 cm), and many panniers simply do not have hooks that fit around it. Any suggestions for brands / products?
Arkel has oversized cam locks for those thick tubes.
Ironically, my small folding bike had massive pannier rack tubing, and I was forced to swap the cams on several of my Arkel bags. Eventually, I decided to buy a new rack with normal tubes, and life has been much easier. LOL
I have a RadWagon 4 with the same problem and I use this pannier that uses velcro straps instead of a traditional hook setup. I love it - have been using it for almost 6 years now and have nothing but high praise for it
They usually screw in to the panniers. Can you find some that fit both the rack and the panniers and replace the originals? You might even be able to find someone to 3d print some