The alarm is on them all, but a jumper up front was put in the wrong place on many or all of the ones without the ACS button-adjustable suspension, so you may not show the alrm if yours is one of the A&C or standard Spyders...unless you fix the jumper problem. The usual cause of bouncing open going down the road is failure to latch the lid properly, though, although overloaded bags or misadjusted latches could do it. Listen for the click when you close them. The gaskets are so tight on the saddlebags that they will easily hold the bags apparently closed until you hit a bump. Oh, and test your alarm. If it doesn't work with either the saddlebags or topcase open, it should be fixed. I don't know if the dealers know how to do this yet, it was a mystery to them at first. A search here should find the instructions for moving the jumper under the switch panel.