Got a new bike a couple of weeks ago and rode a 100k ride and about 50 miles of training rides. I was cleaning the bike and when I turned it over I noticed a crack about 1/2 inch long going sideways on the the large tube going up to the handlebars about 2 inches up from the bottom bracket. The crack is in the clearcoat not in the carbon of the tube. My question is - is that crack going to be a problem? Will it be a problem with the the integrity of the the tube or be a safety issue?