I've used those panniers, too, and they do rattle. Traditional panniers had a spring-loaded system that tensioned the panniers so they didn't fly off. As a byproduct, they were quiet. The new "easy on/easy off" panniers have upper hooks that close around the rack, so they cannot fly off. At the bottom, there is just a "finger" that goes behind the rack tube.
Ortlieb panniers used to have a rubber strap that tensioned the pannier, with a hook at the bottom. If you still have the buckle for that (mine do), then you probably can get these rubber straps and remove the "new and improved" lower hardware. Then you have the ideal situation, with the secure upper hook that closes around the rack and the tensioning hook at the bottom. Jan Heine Editor Bicycle Quarterly www.bikequarterly.com Follow our blog at www.janheine.wordpress.com -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/groups/opt_out.