Thanks for the reply. I ride a 51-52 cm. I have another frame with plenty of patina which i'm currently building up. Need to get a few hundred miles on the new build to make sure it is road worthy. I rebuilt the Motobecane a month ago and put in 300 miles since. This morning while cleaning the bike i found out it was a crack. All along i thought it was a grease line.... Now i know what that creaking sound was when i was climbing those 5% grades. My old eyes are so bad.