So being the mount nerd I am, I immediately set off yesterday grinding Bilgewater rep (and why wouldn't you, the bike is awesome =D)
Since I spent pretty much all my time chaining dungeons, I didn't actually see the bike in action until I was sitting on it for the first time. And to my surprise, it is completely silent.
Never mind it's a motorised machine, with a jet-engine flame blaring out the back of it, it doesn't make a single sound no matter if it's idling or moving.
Is it supposed to be like that? Was it like that on beta?