I picked up the new (second hand) bike on Saturday evening and rode it home. It has an aftermarket alarm fitted and so I pressed "On". It beeped and I walked away. Then the alarm stared going off. Repeat. Same problem. Ok press"Off". Walk away. about 2 minutes later it starts going off again. Repeat a couple of times including trying the other buttons. Ring the old owner. He's never used it, as it was installed be the previous owner and he lived in the scrub. I tried starting the bike and as a result it stopped. So I'm stumped. It doesn't have a brand on the key ring. 4 buttons: On Off Silent Start funny thing was, the next day I had the back seat off for something else, but forgot to look at the brand on the alarm Does anyone have a similar alarm?