I have a nelson-rigg CL-1020 (I don't think they make it anymore) and the magnets only held the bag if I had them tightened all the way up at the front and slid the bag back slightly. I almost always have something in there though, so I got the straps and they work great except when getting gas. Overall, I really like it. It's a great size most of the time, functions pretty well and looks good. The only thing that I don't like about it is that it's not water proof, only comes with a waterproof cover (which I lost).