You can see the crack, circled in red.
Is this dangerous?
In a nutshell, Schwinn will warranty the frame however they want me to destroy the bike which is fine with me. However my 22 year old son does not want me to destroy the bike in exchange for the new one. He feels that the crack is insignificant and not worth worrying about. He doesn't want the red replacement bike that Schwinn offered us.
So tell me, is this a dangerous crack?