Found what appeared to be a hairline crack in my top tube on my 2013 SLR01. Doesn't appear to be much and my initial thought was a crack in the paint job. The place I bought it from doesn't sell BMC anymore so I took it to another LBS. They were fantastic about taking the bike in and stated that they would take a look at it closely, possibly do some smoke test on it to see if it was a crack that went all of the way through, and show it to the BMC rep in the next few days. I have a feeling I am being over cautious and it really is nothing, but I guess better safe than sorry. As soon as this gets sorted out I will give the proper rep to the shop on here if they come through for me. Not sure if anyone else has had a crack show up on the top tube or not (right on/near the Team Machine sticker)? Hopefully this is nothing and I get the bike back soon, if not I'm not sure how or if a warranty will be exercised.