MTBAlex said:here is another pic.
For the record, i'm not tryign to bash MB/BD. Since the time i purchased the bike, the bike has met all my expectations and would gladly keep riding the bike. I just need a little help in determining what it is. I have signed up for a Livestrong challenge next month and do not want any downtime for my training or even riding in it.
I'm most definitely not an engineer, but that looks like it is following a seam. Way to straight to be a crack. I would definitely get it checked out though.