Is it normal that the Abus Bordo folding lock rattles?
This is a late answer I know, but I've found a solution to the rattling problem. I've had an Abus 6500 for nearly 3 years now and the rattling always annoyed me. I used to wrap a kind of nylon strap between the lock as I folded it and that partly solved it, although most of the rattle was coming from the joints themselves. It was only just today when I thought of this: I sprayed some chain oil, the type that comes in a spray can, into the joints, between the bars. As you may know, this oil is very liquid when sprayed but soon solidifies as the solvent evaporates. This allows it to get right into the joint and GREATLY reduce rattle. There is inevitably some that runs onto the parts you need to touch so a bit of cleaning up afterwards is necessary but the result for me is just astounding. I just wish I'd thought of it 3 years ago!