Originally Posted by
pdlamb
I've been using an Ortlieb with the map attachment for years. It is possible to get the mounting cable snug but not so tight that it gets damaged. If it is tightened too much, you can buy a replacement cable or mount. I've done all three (reused as is, new cable, new mount).
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I do not use an Ortlieb, but mine also uses a cable on the bracket mount. I just use some stainless left over cable that I cut off from the last time I installed a brake or derailluer cable. Where the cable contacts a painted surface, I wrapped some electrical tape around the cable to protect it from chafing.