My alarm on my 02 harley road king goes off when i come to a stop. it stops when i take off. replaced battery and still same problem

If your meaning the siren is making noise, I would think you may have a bad TSSM unit. If your security light in the speedo is coming on, you may just have a turn signal issue, maybe a bad HD brake run turn modual (if you have added this to the rear) or if you have a Kuryakyn Panacea or run turn brake. These add on components commonly cause TSSM codes to pop up and will present with a Security light in the speedo. Plus your signals will blink rapidly 5 times as an additional warning.

Have the same problem with my 2002 RK. Trying to solve it but no luck until now. Did you figure it out what caused yours to behave like this?