I agree -- the Wald baskets don't rattle much when they're closed. I've been using mine nearly every day for at least ten years with no problems. I recommend padding the vertical strut of the carrier rack (against which they might bang) with a little bit of bar tape. I also recommend, rather than PVC ties, nylon straps with quick-release buckles to attach the baskets to the rack -- it's nice to be able to take them off quickly when you don't want the weight. PM me if you'd like instructions on how to make the straps.