Hi, smadams. I have an exercise bike in my home and I love it. I don't use it to fight urges, per se, but regular exercise has a lot of other benefits. I've lost weight, I tire myself out so I sleep better at night, sense of accomplishment (short term - having gotten my workout in for the day, long term - having lost X weight, or built up to X miles in X minutes). So yeah, I'd say get yourself an exercise bike.
Again, for urges? Haven't tried it, myself. Best wishes!