Double-post, but for especially good reason.
You're right about the fact it plays the bike-music (for example sometimes after losing a battle).
It depends on the Map Loading Process -data (see the Scripting Compendium).
I tested it with Blackthorn City by changing 07 to 08 at 154c2, and bike music didn't start playing anymore after I failed in a trainer battle.
However, there are other locations too where you have to do the same thing.